Service difficulty report · Doubler · Boeing 777FS2

Difficulty date
October 15, 2020
Submitted
November 5, 2020
Operation
Air carrier
Aircraft
N857FD
Make and model
Boeing 777FS2
Aircraft serial
37728
Aircraft time
40,257 hours, 6,337 cycles
Part
Doubler
Part number
143W2314Y406
Condition
Out Of Alignment
Location
Zone 100
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

WHILE ACCOMPLISHING EO G-5310-E0332629 H PART 6 FOUND 3 EACH PILOT HOLES AT NEW FUSELAGE SKIN DOUBLER MISALIGNED WITH THE LONGERON FITTING BETWEEN BODY STATION 993 TO BODY STATION 1008 BETWEEN STRINGER 35 RIGHT TO STRINGER 36 RIGHT. DOUBLER WITH MISALIGNED HOLES REPLACED WITH NEW PART 143W2314Y406 AND INSTALLED, AS PER EO G5310 E0332629 H P6. TITLE: FUSLAGE-MAINFRAME INSPECTION AND MODIFICATION OF THE UNDERWING LONGERON AT BODY STATION 1035 BOEING SERVICE BULLETINS 777-53A0081 AND 777-53-0087. REPAIR CLASSIFIED AS MAJOR, PER GMM 6-2-100.

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