Service difficulty report · Web · Boeing 7378H4

Difficulty date
October 26, 2022
Submitted
November 23, 2022
Operation
Air carrier
Aircraft
N8657B
Make and model
Boeing 7378H4
Aircraft serial
42535
Aircraft time
26,643 hours, 12,489 cycles
Part
Web
Condition
Corroded
Location
Bs 792-847
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

AFT CARGO COMPARTMENT THRESHOLD WEB HAS AREAS OF CORROSION FORM STA 792-847. / [01] BLENDED AREA PER SRM 51-10-02. FOUND CORROSION TO BE OUT OF LIMITS PER SRM 53-60-15-1A-1. REMOVED DAMAGED WEB PER SRM 51-40-02.;[02] LOCATED HOLES AND DRILLED IN NEW WEB PER SRM 51-40-02.INSTALLED NUTPLATES TO WEB PER SRM 51-40-02;[03] VERIFIED CORRECTIVE ACTION #2;[04] COUNTERSUNK ATTACHMENT HOLES PER SRM 51-40-02. TREATED AND PAINTED ALL ADDED HOLES PER SRM 51-20-01 AND AMM 51-21-72.;[05] VERIFIED COUNTERSUNK ATTACHMENT HOLES PER SRM 51-40-02. TREATED AND PAINTED ALL ADDED HOLES PER SRM 51-20-01 AND AMM 51-21-72.;[06] OK TO INSTALL WEB.;[07] REMOVED AND REPLACED AFT CARGO THRESHOLD WEB I.A.W SRM 51-40-02.

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