N421JS
Registered owner: BANK OF UTAH TRUSTEE, UT (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| Exec Air Montana Inc. (EFUA) | Certificate holder | — | Matched by certificate designator |
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
2 reports on file, 2009-12-09.
Part: BLADE — LEAKING (PROPELLER)
PROP WAS OBSERVED TO BE LEAKING GREASE FROM TWO BLADE SHANK AREAS. SPINNER WAS REMOVED FOR INSP AND ALL 3 BLADES APPEAR TO BE LEAKING GREASE. ONE BLADE WAS OBSERVED TO HAVE EXCESSIVE BLADE SHANK MOVEMENT BEYOND ALLOWABLE LIMITS. WHEN BLADES WERE CHECK FOR BLADE TWIST ONE BLADE EXHIBITED AN EXCESS AMOUNT OF ROTATIONAL MOVEMENT. PROPS WERE REMOVED FOR INSP AND REPAIR AFTER AN INITIAL INSP BY A BY MFG SERVICE CENTER. LT PROP HAD A TOTAL OF 472.5 HOURS SINCE OVERHAUL.
Part: BLADE — DAMAGED (PROPELLER)
PROP WAS OBSERVED TO BE LEAKING GREASE FROM 2 BLADE SHANK AREAS. SPINNER WAS REMOVED FOR INSP AND ALL 3 BLADES APPEAR TO BE LEAKING GREASE. 1 BLADE WAS OBSERVED TO HAVE EXCESSIVE BLADE SHANK MOVEMENT BEYOND ALLOWABLE LIMITS. WHEN BLADES WERE CHECK FOR BLADE TWIST 1 BLADE EXHIBITED AN EXCESS AMOUNT OF ROTATIONAL MOVEMENT. PROPS WERE REMOVED FOR INSP AND REPAIR AFTER AN INITIAL INSP BY A BY MFG SERVICE CTR. RT PROP HAD A TOTAL OF 472.5 HOURS SINCE OVERHAUL.