Service difficulty report · Panel · Boeing 73776N

Difficulty date
August 27, 2021
Submitted
October 4, 2021
Operation
Air carrier
Aircraft
N7822A
Make and model
Boeing 73776N
Aircraft serial
32596
Aircraft time
59,949 hours, 29,584 cycles
Part
Panel
Condition
Cracked
Location
Fuselage
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

PANEL 191AL INNER SURFACE; FWD LOWER CORNER IS CRACKED AT CORE ; / [01] IDENTIFIED PANEL 191AL IAW SRM 53-30-70-0I-1.FIG 2; ITEM [1]. FOUND DAMAGE AT 3' FROM FWD EDGE; 2'FROM LOWER EDGE TO BE BEYOND ALLOWABLE LIMITS IAW SRM 53-30-70-1A-1.PARA 4.A.(1). REQUIRES REPAIR PER SRM 51-70-05-2R-1 IAW SRM 53-30-70-2R-1.TABLE 201.<BR>REMOVED APPROX. 3'X3' DAMAGED PLIES IAW SRM 51-70-05-2R-1.PARA 4.A-B.; [02] VALIDATED APPLICABILITY OF SRM 51-70-05-2R-1 IAW SRM 53-30-70-2R-1.; [03] INSPECTED AND VERIFIED CORRECTIVE ACTION ITEMS 1 AND 2. OKAY TO PROCEED PER SRM 51-70-05-2R-1.; [04] APPLIED VACUUM BAG FOR MOISTURE REMOVAL; CHECKED FOR LEAKS. LEAK CHECK GOOD. SET TO CURE USING HEATCON ID:ATS532 S/N:15092117 IAW SRM 51-70-05-2R-1.PARA 4.B.; [05] COMPLETED MOISTURE REMOVAL; NO CONTAMINATION NOTED; REMOVED VACUUM BAG; FABRICATED REPAIR PLIES OUT OF BMS 8-79 ST 120 LOT#1458373-1; BMS 8-79 ST 1581 LOT#1466502-1; AND BMS 5-129 GR5 LOT#1464324-2; INSTALLED; VACUUM BAGGED; CHECKED FOR LEAKS AND SET TO CURE USING HEATCON HOTBONDER ID:ATS532 S/N:15092117 IAW SRM 51-70-05-2R-1 PAR 4B-E.; [06] CURED; UNBAGGED; LIGHTLY SANDED; AND CLEANED REPAIR PLIES IAW SRM 51-70-05-2R-1 PAR 4E-G.; [07] VERIFIED CORRECTIVE ACTIONS 4-6; [08] UT INSPECTED POST CURE IAW 737 NDTM PART 4 51-00-02; NO DISBONDS NOTED. EQUIP ID#: ATS2341 S/N: 190848104; [09] REFINISHED REPAIR AREA IAW SRM 51-70-05-2R-1 PAR 4G AND AMM 51-21-99-300-802 PAR 3C(1).<BR><BR>COMPLETED SRM REPAIR 51-70-05-2R-1.; [10] VERIFIED CORRECTIVE ACTION 9

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