Service difficulty report · Stiffener · Boeing 7377BD

Difficulty date
September 3, 2026
Submitted
September 11, 2026
Operation
Air carrier
Aircraft
N7721E
Make and model
Boeing 7377BD
Aircraft serial
34479
Aircraft time
65,336 hours, 35,532 cycles
Part
Stiffener
Condition
Cracked
Location
Zone 100
Stage of operation
UK
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

OTS - FUEL TANK STIFFENER AT STA 540, 26RBL CRACKED AT THE TOP REPAIRS. MX FERRIED FROM DAL._ REMOVED AND REPLACED VERTICAL STIFFENER FS 540 RBL 24.91 IAW B737 SRM 51-40-02-0G-0 AND DWG'S 111A6000 REV - AND 111A2001 REV -. VERIFIED REMOVED AND REPLACED VERTICAL STIFFENER FS 540 RBL 24.91 IAW B737 SRM 51-40-02-0G-0 AND DWG'S 111A6000 REV - AND 111A2001 REV -.

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