Service difficulty report · Limiter · Boeing 757236

Difficulty date
October 8, 2020
Submitted
October 9, 2020
Operation
Air carrier
Aircraft
N956FD
Make and model
Boeing 757236
Aircraft serial
29115
Aircraft time
34,121 hours, 20,583 cycles
Part
Limiter
Condition
Tripped
Location
Flap Transmissio
Stage of operation
AP
How discovered
O
Nature of condition
J
Precautionary procedure
L

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

What was found

PDIS 956 27-50 6540 08OCT20 SAN FACT U. TRAILING EDGE FLAP DISAGREE ICAS ON APPROACH 170 KTS AIRSPEED ALTITUDE 2600 FEET. OCCURED WHEN MOVING FLAPS FROM 20 DEGREES TO 25 DEGREES. FLAP HANDLE AT 25 DEGREES FLAP INDICATOR MOVED FROM 20 DEGREES THEN STOPPED AT APPROX 21 DEGREES, IAW FIM 27-51-00-815-808. BITE CHECK ON FSCU 1 PRODUCED MESSAGE 305. INSPECTION FOUND RIGHT HAND OUTBOARD FLAP TRANSMISSION TORQUE LIMITER OVERLOAD INDICATOR POPPED. TRANSMISSION FLUID AND LUBE COMPLETE (INDICATOR RESET). RAN FLAPS UP AND DOWN 4 TIMES COMPLETE. TIMES COMPLETE TRANSITION FROM 20 DEGREES TO 25 DEGREES VERY SMOOTH, NEVER ANY FAULT LIGHT OR EICAS MESSAGES DURING CHECK. PER CONFERENCE CALL ALL MAINTENANCE ACTION ARE SUFFICIENT TO FACT THIS WRI, REF WRI 27-50-6542. OPENED ITEM PLACED ON OIL FOR CYCLED ROTATION INSPECTION.