Service difficulty report · Stringer · Boeing 75733N

Difficulty date
November 22, 2024
Submitted
November 27, 2024
Operation
Air carrier
Aircraft
N77867
Make and model
Boeing 75733N
Aircraft serial
32592
Aircraft time
69,227 hours, 20,496 cycles
Part
Stringer
Part number
143N311029
Condition
Bent
Location
Zone 100
Stage of operation
IN
How discovered
V
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

STRINGER 16LH BENT AT STATION 613-618 REQUIRES REPAIR FOUND WHILE WORKING SKIN DAMAGE ON LOG PAGE 9913805ORIGINAL STRINGER MATERIAL IS. 0.063 7075-T6 PER SRM 53-30-03-01-1 FIGURE 1. ITEM 1. AND TYPE 1N PER SRM 53-00-03-2R-1 FIGURE 201 TABLE 3 REPAIR TO BE USED IS SRM 53-00-03-2R-1. THIS IS A MAJOR REPAIR SFR DATA NOT COLLECTED VERIFIED ORIGINAL MATERIAL PER SRM. 53-30-03 AND REPAIR MATERIAL PER 53-00-03. REPAIR PART REQUIRED IS BAC1498-235. THIS IS A MAJOR REPAIR. STRINGER 16L MAX. MATERIAL THICKNESS IS .063 PER SRM 53-30-03-0L-1 DETAIL 1. SEE NOTE "A" FOR ITEM 1 ,SECTION REMOVED FROM STA 617-623 IS TAPERED TO .040. WILL NEED REPAIR PIECE BAC1498-202. PER SRM 53-00-03-2R-1 FIG 201 SH 4. VERIFIED STRINGER SECTION REMOVED IS TAPERED DOWN TO .040 FROM .063 REF SRM 53-30-03-0L-1 DETAIL 1, SEE NOTE "A" FOR ITEM 1. WILL REQUIRE BAC1498-202 PER SRM 53-00-03-2R-1 FIG 201 SH 4. REMOVED STRINGER SECTION PER SRM 53-00-03-2R-1 REPAIR 1 STEP 1. NEED TO ACCOMPLISHED HFEC INSPECTION PER STEP 2. 8 OPEN FASTNER HOLES AFT OF THE DOUBLER REQUIRES HFEC INSPECTION PER NDT PART 6, 51-00-16. ACP HFEC ROTARY SCAN OF HOLES REF PART 6 51-00-16 AND C/S ROTARY HOLE SCAN REF PART 6 53-30-03 AND HFEC SURFACE INSPECTION OF CUT EDGES REF PART 6 51-00-19. PER STEP 2 OF SRM 53-00-03-2R-1. NO INDICATIONS FOUND.

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