Service difficulty report · Rib · Boeing 73771B

Difficulty date
November 3, 2020
Submitted
November 17, 2020
Operation
Air carrier
Aircraft
N7854B
Make and model
Boeing 73771B
Aircraft serial
29372
Aircraft time
39,878 hours, 26,984 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
Stage of operation
IN
How discovered
9
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

FOUND CRACK AT RT HORIZONTAL STAB ON RIB NR 4 UPPER OUTBOARD CHORD FWD HOLE 1 EA. ACCOMPLISHED INTERN REPAIR AT RT HORIZONTAL STAB RIB NR 4 UPPER OUTBOARD CHORD FWD HOLE, PER RES-W12016363-1 REV P1 AND EA 20-155-02202 REV IR REPETITIVE INSPECTION LT TLD, SPEC LIMIT START 11/12/20. INSPECTION THRESHOLD 30 DAYS, ACTION REQUIRED: CONTACT ENGINEERING IF THE RT HORIZONTAL STABILIZER WILL BE ROBBED.

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