What was found
CABIN R4 LAVATORY SMOKE DET GOES OFF REPETEDLY . NO REASON. P/N PU90-499R3(<P>REMOVED & REPLACED LAV SMOKE DETECTOR R4 & OPS CHECK OK AMM 26-13-01.</P>)
- Difficulty date
- March 23, 2021
- Submitted
- March 29, 2021
- Operation
- Air carrier
- Aircraft
- N640GT
- Make and model
- Boeing 7673S1
- Aircraft serial
- 25221
- Aircraft time
- 92,656 hours, 19,742 cycles
- System (JASC)
- 2611 · Smoke Detection
- Part
- Smoke Detector
- Part number
- PU90499R3
- Part serial
- 08724
- Condition
- False Activation
- Location
- R4 Lavatory
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- N
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.