What was found
(CAN) ON LT ENGINE WARMING UP, FOUND LIGHT WARNING INDICATION (ON) IN RANGE OF RPM. WHILE TROUBLESHOOTING FOUND LT VACUUM PUMP DRIVE SHAFT SHEARED. NO OTHER DAMAGE FOUND AT VISUAL INSPECTION.
- Difficulty date
- June 24, 2004
- Submitted
- July 22, 2004
- Operation
- General aviation
- Make and model
- Piper PA31350
- Aircraft time
- 14,516 hours
- Engine
- Lyc TIO540J2BD
- Propeller
- Hartzl HCE3YR2A
- System (JASC)
- 3720 · Vacuum Indicating System
- Part
- Drive Shaft
- Part number
- 441CC7
- Condition
- Sheared
- Location
- Vacuum Pump
- Component
- Pump
- Component part number
- 441CC7
- Stage of operation
- TX
- 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.