Service difficulty report · Stringer · Boeing 757224

Difficulty date
January 5, 2023
Submitted
January 6, 2023
Operation
Air carrier
Aircraft
N14106
Make and model
Boeing 757224
Aircraft serial
27296
Aircraft time
103,412 hours, 24,436 cycles
Part
Stringer
Part number
143N3110
Condition
Damaged
Location
Sta. 620 - 640
Stage of operation
IN
How discovered
O
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

UPON DAMAGE REMOVAL OF FUSELAGE SKIN SECTION REF. L/P: 3443028, BETWEEN STA. 620 - 640, STRINGER S9L ALSO FOUND DAMAGED COMPLIED WITH INSPECTION REQUIREMENTS FOR VERIFICATION OF MAT''L FOR HAT SECTION DOUBLER AND FILLER MAT''L PER SRM: 53-00-03-2R-1 STEP 3. CUT OUT DAMAGE STRINGER SECTION APROX. SIZE= 3.2" LENGTH REF. VERIFIED RAW STOCK MATERIAL TO FAB REPAIR HAT SECTION DOUBLER VERIFIED RAW SHEET FILLER MATERIAL AS: .032-7075-T6, P.O# REF L/P: 3443028 FOR HFEC OF FASTENER HOLES IN STRINGER 9L STEP SRM: 53-00-03-2R-1 STEP: 1 PARTS USED: AS: BAC1498-200X7075T6 P.O# 5550900 REF. SRM: 53-00-03-2R-1 5204057 REF. SRM: 53-00-03-2R-1, TABLE: 1, ITEM: 2 2 OF SRM: 53-00-03-2R-1 REPAIR 1. BAC1498-200X7075T6,QTY :1 STEP: 3, REPAIR MATERIALS IN TABLE: 1 ITEM: 1, TYPE: 1 OF TABLE: II FIG. 201. SHEET: 5, DETAIL: 2 COMPLIED WITH INSPECTION REQUIREMENTS FOR FABRICATION OF REPAIR PARTS NEEDED IN TABLE I, DRILLED, DEBURED AND ALODINED REF.SRM: 53-00-03-2R-1 STEPS: 3 THRU 7 AND APP OF PRIMER AND PAINT ON REPAIR PARTS. OK TO INSTALL. FABRICATED REPAIR PARTS NEEDED IN TABLE I, DRILLED, DEBURED AND APPLIED PRIMER AND ENAMEL PAINT ONTO REPAIR PARTS LISTED IN ALODINED REF.SRM: 53-00-03-2R-1 STEPS: 3 THRU 7 TABLE: I, REF. SRM: 53-00-03-2R-1 REPAIR: 1, STEPS: 8. THRU 9. (OK TO INSTALL) WEIGHED REPAIR STRINGER PARTS AND FASTENERS 1 LB. REF. UNITED''S GMM: 05-45-15 PAR. 3.D.(4)(B) WITHIN ALLOWABLE WEIGHT CHANGE NOT REQUIRING DOCUMENTING FLOE CHANGES 1, CATEGORY: A REPAIR OF INSPECTION THRESHOLD OF 37,5