SDR SWAA2020072797624

Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date: July 1, 2020
Submitted: July 27, 2020
Operation: Air carrier
Aircraft: N714CB
Make and model: Boeing 7377H4
Aircraft serial: 27848
Aircraft time: 75,441 hours, 45,129 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Stiffener
Part number: 141A7410
Condition: Corroded
Location: Bs 255
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

CORROSION ON VERTICAL STIFFENER AT BS 225 LBL 5 WL 160. FOUND CORROSION ON VERTICAL STIFFNER AT BS 225, LBL 5, WL 160 TO BE OUT OF LIMITS DUE TO NO LIMITS IN SRM. REMOVED AND REPLACED VERTICAL STIFFNER IAW SRM 51-40-02-0G-0, SRM 51-40-05-0G-0, & DWG 141A7410. REAPPLIED LEVELING COMPOUND PER AMM 51-41-11-350-801.

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