Service difficulty report · Angle · Boeing 737

Difficulty date
August 29, 2022
Submitted
September 26, 2022
Operation
Air carrier
Aircraft
N8652B
Make and model
Boeing 737
Aircraft serial
36971
Aircraft time
27,099 hours, 12,518 cycles
Part
Angle
Condition
Corroded
Location
Aft 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

AFT CARGO STA. 727C-747; RT TRANSITION ANGLE HAS CORROSION AROUND NUT-PLATE HOLES. / [01] COMPLIED WITH MEASUREMENTS AND TOOL REQUIREMENTS.;[02] REMOVED CORROSION FROM TRANSITION ANGLE STA 727C TO 727E PER SRM 53-00-53-1A-2 (0.040' DEPTH). ANGLE STA 727C TO 727E IS WITHIN LIMITS AND TREATED AND PRIMED PER SRM 53-00-53-1A-2.;[03] REMOVED CORROSION FROM TRANSITION ANGLE STA 727C TO 727E PER SRM 53-00-53-1A-2 (0.002' DEPTH). ANGLE STA 727C TO 727E IS WITHIN LIMITS AND TREATED AND PRIMED PER SRM 53-00-53-1A-2.<BR>DEPTH ON CORRECTIVE ACTION 2 IS INCORRECT.;[04] CERTIFIED.;[05] C/W INSPECTION<BR>REMOVED CORROSION FROM TRANSITION ANGLE STA 727C TO 727E PER SRM 53-00-53-1A-2 (0.002' DEPTH). ANGLE STA 727C TO 727E IS WITHIN LIMITS AND TREATED AND PRIMED PER SRM 53-00-53-1A-2.<BR>DEPTH ON CORRECTIVE ACTION 2 IS INCORRECT.;[06] CORROSION IS OUT OF LIMITS ON RH TRANSITION ANGLE FROM STA 727D TO STA 747 PER SRM 53-00-53-1A-2. REMOVED DAMAGED SECTION ON RH TRANSITION ANGLE FROM STA 727E+10 TO STA 767 FOR REPAIR PER SRM 51-40-02.;[07] REMOVED CORROSION FROM RH TRANSITION ANGLE STA 727C TO 727E+10 PER SRM 53-00-53-1A-1 (REMAINING THICKNESS 0.040'). ANGLE STA 727C TO 727E+10 WITHIN LIMITS; TREATED AND PRIMED PER SRM 53-00-53-1A-1.<BR><BR>RH TRANSITION ANGLE STA 727E+10 TO STA 767 WILL BE REPLACED ON NONROUTINE TTG8Q00EHM9N.