Service difficulty report · Web · Boeing 7378H4

Difficulty date
June 29, 2022
Submitted
July 29, 2022
Operation
Air carrier
Aircraft
N8637A
Make and model
Boeing 7378H4
Aircraft serial
42523
Aircraft time
27,735 hours, 12,745 cycles
Part
Web
Condition
Corroded
Location
Fwd Cargo
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

FORWARD CARGO THRESHOLD WEB HAS CORROSION STA-440 TO STA-492 (MARKED) / [01] THIS PART THICKNESS IS OUT OF LIMITS AFTER BLENDING TO REMOVE CORROSION.THICKNESS WAS AT .050 NOW AT .040. PER SRM 53-00-53-1A-2.;[02] THIS PART THICKNESS IS OUT OF LIMITS AFTER BLENDING TO REMOVE CORROSION.THICKNESS WAS AT .050 NOW AT .040. PER SRM 53-00-53-1A-2.;[03] REMOVED THRESHOLD WEB I.A.W SRM 51-40-02.;[04] FABRICATED NEW THRESHOLD WEB FROM .045? 7075-0 PER BOEING DRWG PL 143A8122 AND SMAL CONTROL # 0270691469. OK TO HEAT TREAT.;[05] FABRICATED NEW THRESHOLD WEB FROM .045? 7075-0 PER BOEING DRWG PL 143A8122 AND SMAL CONTROL # 0270691469. OK TO HEAT TREAT. C/W INSPECTION;[06] RECEIVED NEW THRESHOLD WEB FROM BOEING P/N 654A0003-58. MATCH DRILLED AND COUNTERSUNK NEW WEB PER SRM 51-40-02. INSTALLED NUT PLATES ON NEW WEB PER SRM 51-40-02.;[07] INSTALLED NEW WEB PER SRM 51-40-02;[08] DID NOT USE WEB FABRICATED WEB ON BOEING SMAL CONTROL # 0270691469. OBTAINED NEW PART FROM BOING.;[09] 6. GEOFFREY SNYDER (TECHNICIAN); 18-JUL-2022 05:32 UTC<BR>RECEIVED NEW THRESHOLD WEB FROM BOEING P/N 654A0003-58. MATCH DRILLED AND COUNTERSUNK NEW WEB PER SRM 51-40-02. INSTALLED NUT PLATES ON NEW WEB PER SRM 51-40-02.<BR>7. GEOFFREY SNYDER (TECHNICIAN); 18-JUL-2022 05:33 UTC<BR>INSTALLED NEW WEB PER SRM 51-40-02 RII

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