What was found
AIRCRAFT IN BASE MAINTENANCE: CORROSION OF L1 DOOR THRESHOLD FITTING BETWEEN FR17 AND FR20 AT LBL 74, MEASURING L=1.5 IN, W=0.9 IN, D=0.031 IN. REPLACED THRESHOLD FITTING WITH NEW IAW SRM 51-72-11.
- Difficulty date
- June 26, 2020
- Submitted
- August 4, 2020
- Operation
- Air carrier
- Aircraft
- N122NN
- Make and model
- Airbus A321231
- Aircraft serial
- 6252
- Aircraft time
- 20,123 hours, 5,674 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Fitting
- Part number
- D531121982006
- Condition
- Corroded
- Location
- Frames 17-20
- 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.