Service difficulty report · Web · Boeing 7377BD

Difficulty date
April 6, 2023
Submitted
May 5, 2023
Operation
Air carrier
Aircraft
N7747C
Make and model
Boeing 7377BD
Aircraft serial
36091
Aircraft time
50,468 hours, 25,711 cycles
Part
Web
Condition
Corroded
Location
Zn 100 Fus Lower
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

FWD CARGO THRESHOLD WEB IS CORRODED<[01] FOUND EXFOLIATED OUT OF LIMITS CORROSION AT FWD CARGO THRESHOLED WEB PER SRM 53-30-15-1A-1<BR>REMOVED FWD CARGO THRESHOLD WEB PER SRM 51-40-02-0G-0<BR>LOCATED AND DRILLED NEW THRESHOLD WEB PER SRM 51-40-05-0G-0<BR>TREATED AND PRIMED NEW FASTENER HOLES ON THRESHOLD WEB PER AMM 51-21-41-370-803 AND AMM 51-21-72-370-804<BR>APPLIED TOPCOAT TO THRESHOLD WEB PER AMM 51-21-73-370-804<BR>INSTALLED THRESHOLD WEB PER SRM 51-40-02-0G-0;[02] VERIFIED FWD CARGO THRESHOLD REMOVED AND REPLACED.

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