Service difficulty report · Skin · Boeing 73776N

Difficulty date
February 3, 2022
Submitted
February 23, 2022
Operation
Air carrier
Aircraft
N7725A
Make and model
Boeing 73776N
Aircraft serial
32671
Aircraft time
50,724 hours, 25,358 cycles
Part
Skin
Condition
Corroded
Location
Fuselage
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

CORROSION ON FUSELAGE EXTERNAL SKIN FWD EDGE BUTT JOINT BS1016 AND STR 21L / [01] REMOVED DECORATIVE EXTERIOR PAINT AT DISCREPANCY AREA TO FOM PER AMM 51-21-11;[10] EVALUATED DAMAGE ON FUSELAGE SKIN L=5.7'; W=2.0'; D=0.011'. ORIGINAL THICKNESS 0.071' [REF SRM 53-70-01-0I-1 FIG 5] REMAINING 0.060'. DAMAGE OUT OF LIMITS PER SRM 53-00-01-1A-1 FIG 103 DETAIL D & E;[11] VERIFIED CORRECTIVE ACTION 10;[12] APPLIED DECORATIVE EXTERIOR PAINT AT DISCREPANCY AREA PER AMM 51-21-99;[13] VERIFIED CORRECTIVE ACTION 12.;[14] AS PER EA 22-153-00411; THE DAMAGE IS ACCEPTABLE AS A CONTINUE-IN-SERVICE CONDITION WITHOUT REPETITIVE INSPECTIONS AND NO TERMINATING ACTION REQUIREMENTS.;[15] VERIFIED ITEM 14 CORRECTIVE ACTIONS.

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