Status Subject Contact: Detail Slingsby (UK) Reference information T 1 Grasshopper Air Cadet Operational Notes and Maintenance Manuals are available from the BGA Tutor (Cadet Mk 2) & T.31 (Cadet Mk 3, Tandem Tutor) M Main spar failure Rudder cable stops Lift struts major modification adjust to avoid fin loads Corroded end fittings Mod.80 T.21A & B Sedbergh Tow hook Control stick Drag spar Elevator Elevator Elevator Main frames Control cables Rudder cable stops Wing root fittings O Weak Link Lift struts Tail plane struts Elevator control side plates cracked inter connect – failure threads cracked attachment at pylon front cracked at bolt-hole disconnection in flight clevis pin too long - safety pin fouls on tailplane drive rod failure at ball-end fitting in cockpit - inspect annually end fitting to drive tube rivet failure- inspect annually 1 & 4 cracked inspect annually damaged by lightening adjust to avoid fin loads Cracks in welds For mod BGA 2005/03 C of G release, BLUE link is approved Corroded end fittings Corrosion of attachment points Safety clip found not locked, care required when rigging T.41 Skylark 2 M Shoulder harness M Shoulder harness M Canopy catch M Canopy catch Page 1 BGA Compendium 09/14 canvas seats non canvas seats improved type (lift off) improved type (hinged) Mod 96 (CAA) Mod 97 (CAA) Mod 98 (CAA) Mod 99 (CAA) TNS 1962? 08/89 2-2012 10/93 & 08/80 12/93,10/91 & 06/83 10/83 06/84 08/85 02/96 & 08/95 09/85 & 06/86 04/87 08/89 06/93 5/2006 2-2012 5-2012 2-2013 Status Subject Rudder stops Fin spar inspection at the base Rudder cables Slingsby (UK) Detail adjust to avoid fin load annual & after heavy landings etc fouling on the fin Reference information TN 107/T50 T.42 Eagle Canopy retention strap M Wing spars T.43 Skylark 3 & T.50 Skylark 4 M Wing root strengthening Wing fittings M Harness attachments Canopy catch worn Fin spar inspection at the base Rudder stops Aileron misrigging Aileron pip-pin connector Elevator misconnected Rudder horn T.45 Swallow M Canopy catches Fin spar Rudder stops insecure Cockpit torque tube T.49 A & B Capstan Cracks in bracing at frame 3 Air brake rod Tow release Rudder lower hinge Rudder stops Page 2 BGA Compendium 09/14 fouls rear stick strengthening Mod 1 Mod 5 severe corrosion inspect & treat as necessary excess backlash external lever does not function annual & after heavy landings etc adjust to avoid fin loads fit wing tips with ailerons neutral failed - aileron disconnected driver lower lug not in slot - loosens in flight severe corrosion Mod 7 Mod 96 & 97 Mod 99 TN 107/T50 Skylark 3 insecure damaged by rudder cables after wearing through the fairlead resulting in rudder over-travel cracks Mod 10 threaded end fractured adjacent to the brake cable frayed at pulley guard corroded adjust to avoid fin loads TNS 06/87 08/87 04/88 10/96 & 12/81 06/83 08/87 06/87 10/92 06/93 04/97 02/99 04/88 12/90 08/74 03/75 08/84 12/82 08/87 Slingsby (UK) Status Subject Rudder-post Airbrakes jammed Fuselage skin Rudder cables M Rudder torque tube R Wings Detail Reference information cracked at weld protruding bolt on brake paddle damaged by skid rubber air brake mechanism damaged damage airbrake rod cables wrapped around rod behind cockpit Inspection and modification BGA 029/05/2002 iss.1 Inspection guidelines for wing fittings BGA 050/05/2010 iss 1 Capstan In Service Reports (Advisory) Ailerons Ailerons found not connected during take off. T51 Dart 15, 15R, 15WR, 17, 17R, 17WR EASA SAS.A.087. I Undercarriage strengthening M Spar M Dural spar boom corrosion at wing root corrosion at bond mandatory inspection every 5 years Revised inspection at issue 3 Mod 66 AD 155PRE80 TI58 AD-005-09-97, TI 109/51 iss 3 Dart In Service Reports (Advisory) Drag spar safety pins too long become unlocked Aileron flutter caused by excessive backlash (5 mm total play) Longerons cracked at frame 6in flight break up inspect annually & after any “event” Centre section frames & diagonals cracked Longerons inspection after heavy landings etc & annually Elevator flutter excess play between elevators Wings Corrosion of main spar T.53/YS-53 Sovereign EASA SAS.A.088 M Elevator lever mounting bracket M Tailplane incidence change M Wing centre section M Wing attachment M Wing attachment Page 3 BGA Compendium 09/14 replace (at rear control box) inspection and strengthening bracket (frame 6) inspection and replacement bracket (frame 6) inspection of replacement parts AD 0156PRE80, TI 36, Mod 11 AD 0157PRE80, TI 40, Mod 15 AD 002-05-81, TI 68 AD 004-05-81, TI 70 TI 90 TNS 10/93 06/97 08/98 08/98 06/02 2-2010 4-2011 04/93 & 12/91 12/97 & 08/00 08/79 10/76 & 10/83 04/85 08/85 08/87 10/98 2-2010 05/81 05/81 05/81 05/81 02/80 & 05/81 Slingsby (UK) Status Subject M Centre sections cracks M Wing Detail at frames 4 & 6 Inspection of centre section Reference information TI 100 AD 001-10-82, TI 100/T53 T53/YS-53 Sovereign In Service Reports (Advisory) Airbrakes locked out Frames 4 to 6 mechanism jammed at fuselage frame 6 corrosion and loose rivets T.59 A, C, D & H Kestrel 17, 19, 20 & 22 (Kestrel ”2”) EASA SAS.A.089 See Glasflugel section for Glasflugel Kestrel 401 aircraft M Canopy Modify canopy catch spigot mounting AD 0159PRE80, TI 43, Mod 4 M Landing Gear Reposition bolts on u/c operating shaft Mod 5 Seal flaps and ailerons TI 49, Mod 11 M Fit servo tab to elevator series I becomes series II, aft C of G limit from 14.76" to 15.83" TI 52, Mods 9 & 13 M Controls Introduction of take off flap position on landing flap control Mod 15 M Aileron mass balance limits changed to avoid wing flutter AD 0160PRE80, TI 54 M Wings Inspection AD 0161PRE80, TI 62 M Elevator Actuator fitting inspection AD 0162PRE80, TI 63 Landing flap rods check for end bending TI 64 M Elevator actuator replacement by part number 59A-30-25 AD 0163PRE80, TI 65, Mod 18 Rudder actuator improved bearings fitted TI 67, Mod 26 M Dive brakes Operating limitations AD 0164PRE80, TI 72 M Air brake control system improvement AD 0165PRE80, TI 75, Mod 28 M Root rib ‘uniballs’ - loctite them in AD 0166PRE80, TI 76, Mod 31 M Rudder cable failures (fatal) fit stop to prevent rudder pedals going fully forward. AD 0167PRE80, TI 78, Mod 33 M New mass balancing limits addendum 7 to pilot’s notes M Rudder cables Inspection AD 0168PRE80, TI 77 M Critical areas Inspection for loose bolts AD 0169PRE80, TI 89 M Rudder drive annual crack check mandatory ‘Magnaflux’ check AD 002-01-82, TI 101/T59 M Elevator push rod inspection for internal corrosion AD 019-01-87, TI 106, Kestrel In Service Reports (Advisory) Page 4 BGA Compendium 09/14 TNS 08/85 08/80 07/86 1973 1973 1973 1973 1974 04/75 & 06/75 1975 10/75 01/76 07/86 & 12/81 02/87 Slingsby (UK) Status Subject Airbrake Controls Controls Flap/aileron connections Undercarriage operating arm Flap drive shaft mount loose Flap and aileron ‘buzz’ LE delamination Aileron skew-drives Aileron LE foul Tailplane front mounting lock Winch hook angle changed Water ingress at wing root rib I Landing gear Rudder control Detail Reference information Tensions airbrake caps as necessaryto prevent flap flutter Repeated failures if pedal geometry is wrong Frequently inspect cables in the nose reversed at bell cranks - check after assembly weld failure R H side of wheel box damaged while rigging - caused flap flutter max total freeplays 1/8 “ & 1/16“ water ballast leak drill extra drain holes & inspect annually assemble with loctite to minimise backlash with detached/loose gelcoat must be wire locked improved launch (optional) caused 12” x 6” of disbonding Operating rod weld failure at attachment to operating shaft (poor weld) Rudder drive yoke broken one side suspect control lock coming off during storm T61 Series Airworthiness Directives and Mandatory Modifications listed in CAA MAMIS M Elevator Change of control rigging pin T61A M Engine mount studs replacement of 10mm studs M Canopy Addition of fasteners M Elevator ctr hinge Inspection & replacement M Elevator tab Inspection M Aileron Inspection of operating lever M Rudder pedals Reduction of stops M Wing root fitting Pin inspection M Fuel shut off valve Truma V8M 8 year (seals) life limitation M Tailplane Forward bracket inspection M Wings Inspection of wing centre pin M Truma V8 fuel valves made after 1/6/96exchange valve for new M Fuel shut off valve NK 490 fitted in place of Truma V8M M Wings Inspection of wing centre joint additional limitations M Structural Audit (F) Inspection of airframe (to be completed by April 2004) AD0170 PRE 80, TI 42, Mod 3 AD0171 PRE 80, TI 45, Mod 10 AD0172 PRE 80, TI 50, Mod 15 AD0173 PRE 80, TI 53, Mod 16 AD0174 PRE 80, TI 55 AD 011-10-80, TI 79, Mod 17 AD 012-10-80, TI 80, Mod 18 AD 009-11-80, TI 94 AD 82-50/2, SB 653-41 AD 003-01-82, TI 102/T61 AD 003-06-82 AD 97-140, SB 653-67 SB 653-70 AD 001-07-82, TI 103/T61 TI 111/T61 T61 In Service Reports (Advisory) Page 5 BGA Compendium 09/14 TNS 10/75 04/76 04/77 07/76 09/82 10/83 06/88 & 09/85 08/88 & 06/87 06/88 06/90 BGA 04/99 12/99 4-2006 4-2011 02/90 04/90 04/95 08/97 02/98 07/82 02/03 Slingsby (UK) Status Subject Detail Reference information TNS I SF-25/T-61 elevator tab cables wire lock at tab I T-61 spar delamination at wing root I Longerons corroded at fin post adjacent to microballoon filler I T-61 aileron hinges cracked cracked at pin supporting plate weld TI 73 I T-61 elevator push rod fitting cracks around holes at fork end in fus centre TI 74 I Wheel assembly bolt failures fit larger (8mm) bolts I T-61 tailplane spar delamination inspect annually TI 81 I SF-25/T-61 compass errors magnetised canopy frame I Spar deterioration water in spoiler boxes I SF-25/T-61 wing main pin holes worn & splayed oval I T-61 ignition switch “live” test I Crank case cracks numerous cases - inspect regularly I SF-25/T-61 tailplane front attachment cracked TI 102 I SF-25 fuel flow restriction filter incorrectly installed I Top harness attachments secure to transverse tube I Tubing on fuel gauges hardens and leaks I T-61 magneto to crankshaft coupling failure of type without reinforcing ring I Rear fuselage structure corrosion near fin attachments I Aileron drive bearing failure central hanger upper bearing between sticks I Tailplane front mount cracked through inspect for cracks and poor welds I Throttle cable disconnected check security at carburettor connection I Elevator trim tab Trim tab hinges found worn and un-rolled I Maintenance manual Error noted in T61F maintenance manual weighing formulae I Tube corrosion Corrosion found under wheel fairing 06/73 11/74 01/75 06/75 06/75 11/77 03/79 12/79 06/95 & 12/80 12/80 12/85 02/87 04/90 06/90 01/93 06/95 06/96 02/99 04/99 08/99 10/99 1-2012 5-2012 4-2014 T.65 A & D Vega & T.65C Sport Vega The link below take takes you to the Flight, Service and Repair manual for the T65A. It also has amendments for the 17m tips and Technical instructions at the back. https://members.gliding.co.uk/library/archive/vega-manual-pdf/?bgasearch_keyword=vega t65 manual&postsperpage=10&librarysearch=yes&bgasearch_parentcat=43&bgasearch_subcategory=1470&bgasearch_type=Any type&libreturn=1&pagenum=1 Loose pieces of resin in the wings jam ailerons to be shaken out M Aileron actuator M Flap/airbrake fouls outboard hand hole Modification if Mod 12 not c/out Page 6 BGA Compendium 09/14 TI 83 TI 84 TI 85, Mod 12 06/84, 08/83 & 08/79 08/79 Slingsby (UK) Status Subject Water tanks M Airbrakes inadvertently opening M Wing spigots M Wing strengthening Critical areas M Elevator actuator pin retention M Aileron vibration M Elevator centre hinge-mounting Canopy jettison inoperative Flap drive failure Tailplane attachment M Elevator Drive M Flying controls Detail Reference information TNS do not pressure fill at more than 2½ PSI TI 86 08/79 airspeed restriction - lifted when Mod 12 has been carried out TI 82 08/79 replace TI 87 issue 2 10/79 TI 88, Mod 27 10/79 Inspection for loose bolts TI 89 replace circlip with split-pin TI 91 04/80 mass balance increased (all models) AD 002-05-81,AD 004-01-82, TI 92, TI 95 12/80 rib loose in TP - reinforce TI 104 11/82 check system annually TI 105 11/82 at universal joint at pilots quadrant Pre Mod 16 aircraft only TN 108 08/90 & 08/87 cracks inspection within 6 months and after ground loops etc TI 110/T65 06/99 BGA inspection of elevator drive U channel BGA 006/08/2000 iss1 08/00 Elevator disconnection and tailplane attachment BGA 013/13/2001 iss1, TI 104/T65 iss2 04/01 Vega In Service Reports, Advisory Seat pan fouls elevator control Canopy lock Stern post detached from fin skin Tailplane mounting spigot Rudder travel restricted Rudder cables Elevator drive at base of fin Ailerons Elevator hinge Undercarriage mechanism wear Rudder Tailplane Aileron Tailplane upper skin Tow release & brake cables Aileron actuator cover plate Undercarriage lever failure Undercarriage lever failure Flap drive yokes dis-bonded Canopy Canopy Page 7 BGA Compendium 09/14 cut clearance as necessary screws loose in frame inspect & repair as necessary tongue cracked at bolt holes at extremes of pedal adjustment limit pedal adjustment damaged by a screw at tail wheel retraction hinge, inspect delaminated jammed by wheel retraction with one U/C mechanism bolt reversed axis & drive misaligned align to avoid excess backlash & flutter excess free play causes collapse water drains blocked attachments cracks in GRP inspect frequently hinges and drive box corroded unbonded from root rib corroded & failed jammed ailerons - always tape into place at rod end bearing in cockpit at weld on u/c noticed because of excess play in flaps locking lever must face upwards to prevent accidental canopy opening Latching lever bent, fouling seat and difficult to operate 10/80 12/80 03/82 02/83 06/84 06/84 08/85 09/85 02/88 & 10/86 04/87 06/87 02/88 08/88 02/89 06/89 06/89 06/91 12/93 10/97 08/98 04/05 Status Subject Landing gear Canopy Flaps Slingsby (UK) Detail Frame damaged by incorrectly fitted bolt on operating arm. Catch operating lever broken off Flap disengagement leaver pivot bolt missing Reference information TNS 3-2006 2-2012 4-2013 Page 8 BGA Compendium 09/14