Technical report A-054/1999 APPENDICES

Transcription

1 Technical report A-054/1999 APPENDICES 95

2 Technical report A-054/1999 APPENDIX A Photographs, figures and graphs 97

3 Figure 1

4 Figure 2

5 MAIN WRECKAGE Aircraft Figure 3.1 Aerial View Figure 3.2 Main Wreckage looking North-West Figure 3.3 Main Wreckage looking West Figure 3

6 B GENERAL ARRANGEMENT Cabin Door L1 Forward Fuselage Break Aft Fuselage Break Cabin Door L2 Cabin Door L3 Cabin Door L4 Sta ~2.4 m ~0.95 m Forward Equipment Centre Nose Landing Gear Wheelwell/Doghouse Main Equipment Centre Forward Cargo Compartment Aft Cargo Compartment Figure 4

7 L4 CABIN LAYOUT Galley Toilet D Galley Forward Cabin Centre Cabin Aft Cabin R1 R2 Seat Row D R3 R4 A L1 L2 B C L3 Toilet A Triple Passenger Seat Row Exit Toilets B & C 235 Passenger Seats Figure 5

8 NOSE LANDING GEAR SUPPORT STRUCTURE Sta Forward 11 ft (3.35 m) Side View Up Sta 263 Forward Sta 324 Sta 395 Wheelwell Doghouse NLG Drag Strut Trunnion NLG Leg Trunnion Isometric View Figure 6

9 B757 DETAILS (Similar Aircraft to G-BYAG) Doghouse Wheelwell Drag Strut Forward Doors (normally closed, manually opened for access) Leg Figure 7.1 Nose Landing Gear Cabin Floor Beam Cable Fairlead Control Cables Doghouse Top Beams Figure 7.2 Control Cables Underfloor Figure 7

10 POWERPLANT CONTROL CABLES Pylon Pulley No 2 Powerplant Cable Loop TRA TRB Input from Flight Deck Forward and Reverse Thrust Levers Forward Pulley No 1 Powerplant Cable Loop TLA TLB Figure Powerplant Control Run Schematic Input from Flight Deck Forward and Reverse Thrust Levers Output to Fuel Metering Unit and Thrust Reverser Selectors Advance Forward Thrust 'A' Cable Increase Forward Thrust Forward Pulley Pylon Pulley Advance Reverse Thrust 'B' Cable Increase Reverse Thrust Figure Powerplant Control Run Operation Figure 8

11 Sta POWERPLANT CONTROL CABLE LAYOUT Cabin Floor Beam Cabin Floor Flight Deck Thrust Levers Powerplant Control Forward Pulley Wheelwell Doghouse Main 'A' Cable 'B' Cable Equipment Centre Figure 9 No 1 Powerplant Control shown, No 2 similar Nose Landing Gear (NLG)

12 Electrical and Electronic Equipment Racks MAIN EQUIPMENT CENTRE Aircraft Battery Cabin Floor Left Generator Power Panel Right Generator Power Panel Forward Pressure Bulkhead Forward Equipment Centre NLG Wheelwell NLG Doghouse Main Equipment Centre Figure 10

13 FLIGHT RECORDERS Figure 11.1 Flight Data Recorder and Cockpit Voice Recorder Figure 11.2 Quick Access Recorder (QAR) Figure 11.3 QAR Cassette Figure 11.4 QAR Figure 11

14 FDR DATA - GLIDESLOPE INTERCEPT TO FIRST TOUCHDOWN Glideslope Deviation (dots) Barometric Altitude 3 degree slope AP and AT Glideslope Deviation Alt amsl Airspeed & Groundspeed Groundspeed Airspeed Pitch Pitch Elevator & Column Column Position Elevator EPR Radio Altitude Normal G EPR & Normal G R adio Altitude Time in ten second intervals Figure 12

15 FDR DATA - MANUALLY FLOWN SEGMENT TO FIRST TOUCHDOWN Glideslope Deviation (dots) AP and AT Glideslope Deviation 3 degree slope Barometric Altitude Alt amsl Airspeed & Groundspeed Airspeed Pitch Groundspeed Pitch Elevator & Column Column Position Elevator Radio Altitude Normal G Radio Altitude EPR EPR & Normal G Commander CVR channel Marker Beacon ATC Transmission SINK RATE SINK RATE TEN First Officer CVR channel On the bug Six Hundred Down Bug plus ten Five hundred down Full scale fly down Thousand down Figure 13

16 FDR DATA - EXPANDED VIEW OF FIRST AND SECOND TOUCHDOWN Figure 14

17 FDR DATA - WIND PROFILE DURING FINAL APPROACH Figure 15

18 FIRST APPROACH Figure 16

19 SECOND APPROACH Figure 17

20 Initial Runway Scrape Marks Estimated First Touchdown Point Start of Runway G-BYAG GROUND TRACK Embankment (approx 25 ft drop) Trees Main Wreckage Engines Nose Landing Gear Mound Trees Tyre and Scrape Marks Airport Boundary Fence Airport Perimeter Road Second Runway Scrape Marks 02 Taxiway Start of continuous PAPIS Tyre and Scrape Marks Apron Control Tower Terminal Building Distance - metres Figure 18

21 Oscillatory Right MLG Tracks G-BYAG GROUND TRACK - FINAL PART Trees Main Wreckage Engines Embankment Mound Trees Nose Landing Gear Figure 19

22 G-BYAG GROUND RUN DISTANCE SUMMARY EVENT End of RW20 Aircraft Halted Note: Distances relate to aircraft CG position Distance Along Runway - metre Distance Along Tracks - metre Yawed Slide in Field Start of heavy ground contact in Field Contact with Mound Travel over Mound 343 Running on Grass RW Surround Depart RW hard surface Veering to Right of RW Centreline Start of Veer right of RW Centreline Total Ground Run Tracking close to RW Centreline 2nd NLG Structure, Right Nacelle & Fuselage Nose RW Contact CVR & FDR End 2nd Touchdown: 1st NLG Structure & Right Nacelle RW Contact Slight Bounce of Fwd Fuselage Aircraft Bounce 1st Touchdown (estimated) (417) 417 Start of RW20 0 Figure 20

23 INITIAL RUNWAY MARKS 40 Distance Along RW from Datum 2 (Start of Initial Marks) - metre Aircraft Outline (aircraft level, positioned after start of initial marks) Gouge and Scrape Marks 10 DATUM 2 (Side Light No 11.1) ie 566m from RW20 Start Scrape Marks Distance Right of RW CL - metre 20 Runway Centreline Figure 21

24 SECOND RUNWAY MARKS 40 Distance Along RW from Datum 3 (Start of Second Marks) - metre 30 Aircraft Outline (aircraft level, positioned after start of initial marks) 20 Scrape Marks DATUM 3 (Side Light No 12.95) ie 660m from RW20 Start 10 Gouge Marks Distance Right of RW CL - metre 20 Runway Centreline Figure 22

25 RUNWAY MARKS AND WRECKAGE Second Runway Fuselage Marks Second Runway No 2 Nacelle Marks Figure 23.1 Fuselage Marks Figure 23.2 Nacelle Marks Figure 23.3 Wreckage Items recovered from Runway Figure 23

26 RUNWAY SURROUND Forward Fuselage Structure Runway NLG No 1/5 Tyre Track Right MLG Left MLG Figure 24.1 Runway Edge Tracks Figure 24.2 Grassed Area Left MLG Right MLG Mound No 2 Nacelle Figure 24.3 Right MLG Tracks Figure 24.4 Approach to Mound Figure 24

27 MOUND Runway Left MLG Track Lip at edge of Road Mound Perimeter Road Figure 25.1 MLG Tracks over Road Embankment Airport Boundary Fence Figure 25.2 View Along Track from Mound Figure 25

28 WRECKAGE DETAIL Figure 26.1 Forward Fuselage MEC Figure 26.2 Forward Fuselage Figure 26.3 Forward Equipment Centre Hatch Rear Fuselage Break Slide L4 Figure 26.4 Rear Fuselage Figure 26

29 FORWARD FUSELAGE UNDERSIDE Cabin Floor Undersurface Sta Wheelwell Main Equipment Centre Figure 27.1 Forward Fuselage Underside Sta 395 Sta 365 TRA TRB Floor Panel Damage TLB Figure 27.2 Floor and Cable Damage Figure 27

30 POWERPLANT CONTROL CABLES TRB TRA Sta 365 Figure 28.1 No 2 Powerplant Cables Underfloor Figure 28.2 Cable TLB Severance Figure 28.3 Cable TRB Severance Figure 28

31 LANDING GEAR Figure 29.1 NLG and Doghouse Detached Sidewall Portions remaining with Drag Strut Trunnions NLG Leg Left Trunnion Figure Doghouse Figure 29.3 Right MLG Figure 29

32 Door R4 Door cracked open Slide not deployed R4 L4 Door L4 Door open Slide deployed, not inflated CABIN DISRUPTION Door R1 Door cracked open Slide not deployed Door R2 Door open Slide inflated Door R3 Door open Slide inflated Seat Rows 9R & 11R Detached Seat Rows 28R & 29R Detached R1 Seat Row A L1 R2 D R L2 B C L3 Seat Rows 28L & 29L Detached Door L1 Door open Slide deployed, not inflated Door L2 Door open Slide inflated Door L3 Door not opened Slide not deployed Figure 30 Exits used shown colour coded, where known

33 Video Monitor CABIN Seat Row 8R Seat Row 9R Figure 31.1 View Aft from Door L1 Figure 31.2 Forward Cabin 31R 28L 30R 29R 28R Buckled Floor Figure Rear Cabin Figure 31

34 Left post of Left Windscreen FLIGHT DECK Captain s Seat Figure 32.1 Flight Deck Co-Pilot s Seat Reverse Thrust Levers Captain s Right Rudder Pedal Forward Thrust Levers Drinking Water Bottle Figure 32.2 Centre Console Figure 32

35 Sta NOSE LANDING GEAR SUPPORT STRUCTURE DISPLACEMENT Pitch Attitude -7 (Nose Down ) Figure 33