Service difficulty report · Attach Fitting · Boeing 7377H4

Difficulty date
January 5, 2022
Submitted
February 4, 2022
Operation
Air carrier
Aircraft
N452WN
Make and model
Boeing 7377H4
Aircraft serial
29846
Aircraft time
60,081 hours, 35,724 cycles
Part
Attach Fitting
Part number
147A750114
Condition
Corroded
Location
Aft Cargo Bay
Stage of operation
UK
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 FLOOR AREA BS 907 RT RAIL HAS CORROSION AT NET ATTACH FITTING. REMOVED CORROSION IAW SRM 51-10-02-0G-0. PERFORMED UT THICKNESS INSP ON REWORKED AREA IAW NDT P4 51-00-00 PROC.3, PERFORMED EVALUATION WITH UT THICKNESS AT REWORKED AREA AND ADJACENT STRUCTURE. IAW NDT PART 4 51-00-00 PROCE 3. MIN THICK 0.048'. ORIGINAL MATERIAL THICKNESS 0.070'. FOUND OUT OF LIMITS IAW SRM 53-00-53-1A-2. FIG. 103; DETAIL G.; [06] ADDING TO STEP 1. REMOVED RT TRACK -NET ATTACH FITTING IAW SRM 51-40-02-0G-0. REPLACEMENT OF RT TRACK-NET ATTACH FITTING WILL BE ACCOMPLISH ON TASK TTG8Q00A4AA4.

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