SDR SWAA2021082511143

Service difficulty report · Intercostal · Boeing 7377BD

Difficulty date: March 5, 2020
Submitted: August 25, 2021
Operation: Air carrier
Aircraft: N7745A
Make and model: Boeing 7377BD
Aircraft serial: 33933
Aircraft time: 42,015 hours, 21,094 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Condition: Corroded
Location: Bs 294-303 S22l
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 INTERCOSTAL FROM STA 294.5 - 303; STR 22L; LBL 45; WL 168 / BLENDED CORROSION ON INTERCOSTAL STA 294.5 - 303 STR 22 L/H; LBL 45; WL 168 PER ATS ER 20-02085 REV IR AND SWA EA 1-753-36678 REV IR. BLEND DIMENSIONS ARE 8.5'L X 1.5'W X .008.

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