Service difficulty report · Shaft · Boeing 737301

Difficulty date
March 23, 2000
Submitted
June 8, 2000
Operation
Air carrier
Aircraft
N584US
Make and model
Boeing 737301
Aircraft serial
23743
Part
Shaft
Part number
6570947288
Condition
Failed
Location
Te Flaps
Stage of operation
AP
How discovered
O
Nature of condition
F
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

PHL - FLT993 - UPON PREPARATION FOR LANDING FINAL AT PHL, THE FLAPS WOULD NOT EXTEND OR RETRACT PAST 10 DEGREES. FLIGHT LANDED WITHOUT INCIDENT AND TAXIED TO THE GATE. NO EMERGENCY WAS DECLARED. MAINTENANCE FOUND THE MIDFLAP TORQUE SHAFT CLEARANCE DOOR FOR THT RIGHT WING INBOARD FLAP HAD FAILED. REMOVED AND REPLACED RIGHT WING INBOARD FOREFLAP, MIDFLAP AND AFT FLAP ASSEMBLIES. ALSO, REMOVED AND REPLACED NR 5 AND NR 6 TRAILING EDGE FLAP JACKSCREWS AND NR 5 FLAP TRANSMISSION. THE MIDFLAP TORQUE SHAFT CLEARANCE DOOR WAS PLACED ON CDL 57-53-1 AND IS PROGRAMMED FOR REPLACEMENT. FLAP OPERATIONAL CHECK GOOD. (M)