N993JC

No registry detail on file · not in current registry

Operators of this aircraft

Who operated this tail, and how firmly we know it.

No operator established for this aircraft.

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.

1 report on file, 2026-02-02.

WARNING INDICATION · 2026-02-02 Matched by certificate designator
ATA 2430

Part: BEARING — FAILED (NR 4 GENERATOR) · airframe 5,311 hrs · 2,205 cycles

DURING CRUISE CREW RECEIVED GEN 4 OFF BUS AND GEN4 BRG FAIL MESSAGES. CREW FOLLOWED CHECKLIST AND SUBSEQUENT LANDING PERFORMED WITHOUT INCIDENT. MAINTENANCE EVALUATION FOUND #4 GENERATOR HAD A BEARING FAILURE WHERE INSTEAD OF SHAFT SHEARING AS EXPECTED, THE CASE BROKE AT THE COOLING CUTOUT OUTLETS NEAR THE FLANGE CAUSING THE MAIN BODY OF THE GENERATOR TO ROTATE AND TWIST THE POWER ELECTRICAL CABLES UNTIL THE GENERATOR SHAFT FINALLY SHEARED. THE GENERATOR AND 3 MAIN ELECTRICAL POWER CABLES AND OTHER ELECTRICAL WIRING REQUIRED REPLACEMENT. REVIEW OF THE GENERATOR OVERHAUL DOCUMENTS REVEALED CONCERN THE CMM USED WAS AN OLD REVISION OF REV. 6 INSTEAD OF THE CURRENT REVISION OF REV. 12.

Source: SDR CWQA20260306001