Service difficulty report · Support Angle · Boeing 73779P

Difficulty date
April 25, 2023
Submitted
May 26, 2023
Operation
Air carrier
Aircraft
N7860A
Make and model
Boeing 73779P
Aircraft serial
29362
Aircraft time
49,661 hours, 34,220 cycles
Part
Support Angle
Condition
Corroded
Location
Zn 200 Fus Top
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 BS 294.5 ANGLE - SUPPORT TO BS328 WL 208.1 AND RBL 60 AT FWD GALLEY AREA 2023-282637<[01] TOOL USED: ULTRASONIC THICKNESS GAGE; P/N: 45MG; S/N:221859911;CAL DUE DATE: 07-NOV-23;[02] TOOL USED DIGITAL CALIPER P/N: 500-196-30; S/N: A22046819; DUE DATE: 22-JUN-23;[03] REMOVED CORROSION AND EVALUATED REWORKED AREA ON ANGLE LOCATED BS 294.5 TO BS328 WL 208.1 AND RBL 60 AT FWD GALLEY AREA I.A.W. B737-700 SRM 53-10-15-1A-2; STEP 4.C ; FIGURE 103; SHEET 4; DETAIL G<BR>SEE INDIVIDUAL SIGN OFF BELOW;[04] CORRECTED STEP 3. REMOVED CORROSION AND EVALUATED REWORKED AREA ON ANGLE LOCATED BS 294.5 TO BS328 WL 208.1 AND RBL 60 AT FWD GALLEY AREA AND FOUND WITHIN LIMITS I.A.W. B737-700 SRM 53-10-15-1A-2; STEP 4.C ; FIGURE 103; SHEET 4; DETAIL G<BR>SEE INDIVIDUAL SIGN OFF BELOW;[05] REMOVED CORROSION AND EVALUATED REWORKED AREA ON ANGLE LOCATED BS 294.5 TO BS328 WL 208.1 AND RBL 60 AT FWD GALLEY AREA AND FOUND WITHIN LIMITS I.A.W. B737-700 SRM 53-10-15-1A-2; STEP 4.C ; FIGURE 103; SHEET 4; DETAIL G. VERIFIED

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