Service difficulty report · Transmission · Boeing 757222

Difficulty date
February 4, 2024
Submitted
February 5, 2024
Operation
Air carrier
Aircraft
N797FD
Make and model
Boeing 757222
Aircraft serial
28143
Aircraft time
63,987 hours, 26,039 cycles
Part
Transmission
Part number
251N402234
Part serial
5H0408
Condition
Worn
Location
Lt Te Flaps
Part time
8,950 hours, 5,941 cycles
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

ON APPROACH TO RWY 27 RECEIVED TE FLAP DISAGREE EICAS MESSAGE WHEN SELECTING FLAPS 25. WENT AROUND, RAN QRH, AND LANDED ON 36C WITHOUT INCIDENT. AMM: 27-51-11-4 AMM: 27-51-06-4 FOUND L/H I/B FLAP TRANSMISSION TRIPPED AND BALLSCREW KNIFE EDGED. REMOVED AND REPLACED BOTH REF ABOVE. OPS AND INDICATION CHECK GOOD.