Service difficulty report · Support Angle · Boeing 737

Difficulty date
August 12, 2022
Submitted
September 7, 2022
Operation
Air carrier
Aircraft
N8648A
Make and model
Boeing 737
Aircraft serial
42531
Aircraft time
27,511 hours, 12,724 cycles
Part
Support Angle
Part number
141A83125
Condition
Corroded
Location
Fwd Service Door
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 FSD MOPSILL THRESHOLD SUPPORT ANGLE BS294.5+11-BS312+4 RBL56 WL 209 / [01] SRM APPLICABILITY 53-10-15-1A-2. REMOVED CORROSION ON FSD MOPSILL THRESHOLD SUPPORT ANGLE AT BS 312+4 -BS 312+5 PER SRM 51-10-02. MAXIMUM MATERIAL REMOVED WAS 1'X1'X .011'. FOUND TO BE OUT OF LIMITS PER SRM 53-10-15-1A-2. DIAL DEPTH GAUGE ID:ATS2677 S/N: UNKNOWN DATE:11/2021 DUE: 11/2022. UPDATED MEASUREMENT TABLE.;[02] VERIFIED ACTION #1;[03] REMOVED FSD MOPSILL THRESHOLD SUPPORT ANGLE PER SRM 51-40-02.;[04] LOCATED AND DRILLED NEW SUPPORT ANGLE FOR BS 294.5 TO BS 332 RBL 56 WL 209 IAW SRM 51-40-05-0G-0 OK TO INSTALL;[05] VERIFIED CORRECTIVE ACTION #4 OK TO INSTALL;[06] INSTALLED FSD MOP SILL THRESHOLD SUPPORT ANGLE BS 294.5 TO BS 332 RBL 56 WL 209 IAW SRM 51-40-02-0G-0 AND BOEING DWG 141A8310 APPLIED FILLET SEAL IAW AMM 51-31-00-390-804;[07] VERIFIED CORRECTIVE ACTION ITEM 6.;[08] VERIFIED MEASUREMENTS. VERIFIED FAULT COMPLETE