Service difficulty report · Smoke Detector · Boeing 737890
FAA SDR system
- Difficulty date
- August 29, 2018
- Submitted
- August 31, 2018
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35181
- Aircraft time
- 44,959 hours, 13,603 cycles
- Part
- Smoke Detector
- Part number
- 4735975
- Condition
- Failed
- Location
- Cargo Bay
- Stage of operation
- NR
- How discovered
- O
- 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
AFT CARGO DETECTION LOOP A INOP. GROUNDED - YES. CONFIRMED FAULT, CARGO ELECTRONIC UNIT (CEU) BITE SHOWS AFT CARGO A2244 (A3) AFT SMOKE DETECTOR FAILS TEST. REMOVED & REPLACED CARGO BAY SMOKE DETECTOR REF AMM 26-16-01, OPS CK NML REF AMM 26-16-00-730-801. PULLED & RESET 1 TOTAL C/B. REPOSITIONED AFT DET SELECT SWITCH TO NORM.