Service difficulty report · Drive Unit · Boeing 737990ER
FAA SDR system
- Difficulty date
- May 15, 2022
- Submitted
- May 17, 2022
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36362
- Aircraft time
- 29,195 hours, 9,389 cycles
- Part
- Drive Unit
- Part number
- 6225135822
- Part serial
- 4986XX
- Condition
- Failed
- Location
- Nose Radome
- Part time
- 13,953 hours, 4,581 cycles
- Stage of operation
- NR
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PWS, WXR FAIL IN WXR MODE ENROUTE. GROUNDED - YES. VERIFIED IN WXR TEST MODE -"PWS FAIL, WXR FAIL- ANT. SHOWS. IN WXR MODE - "WXR FAIL SHOWS". REF B737-900 AMM 34-43-11, REMOVED/REPLACED WXR ANTENNA DRIVE UNIT. OPS NML REF SAME AMM 34-43-00 OPERATIONAL TEST.