What was found
CREW REPORTED THE NR 1 AHRS FAILED DURING THE THIRD LEG OF TRIP AND HAD TO SWITCH TO REVERSIONARY AHRS NR 2. TROUBLESHOOTING FOUND THE AHRS COMPUTER DEFECTIVE P/N 822-1110-001 S/N 49YM.
- Difficulty date
- June 30, 2011
- Submitted
- August 30, 2011
- Operation
- Air carrier
- Aircraft
- N726CL
- Make and model
- Cessna 525
- Aircraft serial
- 420
- Aircraft time
- 2,362 hours, 2,715 cycles
- System (JASC)
- 3425 · Integrated Flight System
- Part
- Ahrs
- Part number
- 8221110001
- Part serial
- 49YM
- Condition
- Defective
- Location
- Nr 1
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.