Service difficulty report · Doubler · Boeing 74748EF

Difficulty date
October 9, 2026
Submitted
October 10, 2026
Operation
Air carrier
Aircraft
N419MC
Make and model
Boeing 74748EF
Aircraft serial
28367
Aircraft time
121,274 hours, 20,941 cycles
Part
Doubler
Condition
No Discrepancy
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

SECT 41 LAP JOINT INSP: EXISTING DOUBLERS (06 EA) ON S-14L STA 140-160, S-44L STA 240-260, S-44R STA 240-260, S39R STA 380-420, S45L STA 400-420 AND S45R STA 400-420 FOUND THE REPAIR NOT CONFIRMED TO SRM 53-00-01, REPAIR 10, 12 OR 16(<P >DOUBLERS AT STA 240 - STA 260 S-44L AND S-44R WERE EVALUATED AND FOUND TO BE AN AIRCRAFT PRODUCTION IAW DRAWINGS 65B14229 SHEETS 1, 5, 11, 13-17. DOUBLER AT STA 400 - STA 420 S-45L AND S-45R EVALUATED & FOUND DOUBLERS WERE INSTALLED IAW EO 4453B021, AND DOUBLER AT STA 380 - STA 420 S-39R EVALUATED AND FOUND DOUBLER WAS INSTALLED IAW EO 4453B950. DOUBLER AT STA 140 - STA 160 S-14L AREA REMOVED AND NEW REPAIR CARRIED OUT IAW EN 3681-26 REV. 0.

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