- Difficulty date
- August 14, 2017
- Submitted
- January 31, 2022
- Operation
- Air carrier
- Aircraft
- N420WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 29825
- Aircraft time
- 54,720 hours, 31,787 cycles
- Part
- Flap
- Part number
- 113A370020
- Part serial
- 001042
- Condition
- Delaminated
- Location
- Rt Wing
- 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
REMOVE AND REPLACE RT WING O/B AFT FLAP DUE DELAMINATION IS OUT OF LIMITS. / REMOVED UNSERVIABCLE R/H O/B AFT FLAP ASSY IAW AMM 27-51-22-000-801 AND REPLACED WITH NEW INSTALLED IAW AMM 27-51-22-400-801 POS:R/H O/B AFT TAG NO:271994; P/N OFF:113A3700-20; S/N OFF:001042; P/N ON:113A3700-22; S/N ON:001666