Altitude display on PFD:. Blank or incorrect.
 -captain's ...................................... 341 641 31
-first officer's ................................ 341 641 32
. Value disagrees with value on standby altimeter ........................................ 341 626 00
OBSERVED FAULTS 
PW Page 4 D633W113-BEJ May 05/02 
A 
FAULT DESCRIPTION_________________ FAULT CODE
 ALTITUDE selector or increment selector problem on mode control panel ................................... 221 660 00
 ALTITUDE window problem on mode control panel ........ 221 632 00
 ALTN FLAPS switch: does not move flaps.
 -
switch in either position ...................... 275 613 00
 -
switch in EXT position ......................... 275 611 00
 -
switch in RET position ......................... 275 621 00
 ALTN PITCH TRIM lever: . Does not move freely ............................. 274 621 00. Does not operate.
 -either direction ............................... 274 613 00
-NOSE DOWN direction ............................ 274 612 00
 -NOSE UP direction .............................. 274 611 00
 . Levers do not align .............................. 274 622 00
 AOA/TAT (LEFT AIMS) maintenance memo shows on the MAT .................................................. 342 486 41
 AOA/TAT (RIGHT AIMS) maintenance memo shows on the MAT .................................................. 342 486 42
 APU: . Does not start and external electrical power is not available .................................... 491 831 00 . Load compressor surge ............................ 496 811 00. Makes high-frequency noise ....................... 491 812 00. Oil consumption is excessive ..................... 492 811 00. Oil leakage at drain mast ........................ 492 812 00. Smoke or fumes in cabin when APU supplies pneumatic power .................................. 491 821 00. Sparks from exhaust pipe ......................... 491 825 00. Vibration is excessive ........................... 491 811 00
 APU shroud drain mast: has fuel leakage .............. 281 816 00
APU SYSTEM maintenance memo shows on the MAT ......... 491 480 00
OBSERVED FAULTS 
PW Page 5 D633W113-BEJ May 05/02 
A 
FAULT DESCRIPTION_________________ FAULT CODE
 Arm rest problem:
 -captain's ...................................... 251 611 31
 -
first observer's ............................... 251 611 33
 -
first officer's ................................ 251 611 32
Ash (volcanic) condition ............................. 055 615 00
 Assist handle problem:
 -captain's ...................................... 251 645 31