What was found
OIL LEAK AT NR 1 BEARING AREA. INSPECTION REVEALED COLLAPSED 7 LEAKING CARBON SEAL, GROOVED MATING RING SEAL FACE. MATING RING PART NR 23004514. REPLACED WITH NEW CARBON SEAL AND MATING RING.
- Difficulty date
- February 7, 2017
- Submitted
- February 9, 2017
- Operation
- Air carrier
- Filed by
- HEER617E
PHI Aviation, LLC - Aircraft
- N451PH
- Make and model
- Bell 407
- Aircraft serial
- 54127
- Aircraft time
- 5,197 hours
- Engine
- Allsn 250C47B
- Engine time
- 8,465 hours
- System (JASC)
- 7261 · Turbine Engine Oil System
- Part
- Carbon Seal
- Part number
- 23089905
- Part serial
- NA
- Condition
- Collapsed
- Location
- Engine
- Part time
- 794 hours
- Component
- Compressor
- Component part number
- M25010559
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- K
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.