N339EV
Registered owner: SOUTHERN UTAH UNIVERSITY, UT (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| Erickson Helicopters, Inc. (9EKA) | Operator | on 2018-01-26 | Operator named in NTSB report |
Accident & incident history
Operated by Erickson Helicopters (per NTSB report)
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, 2018-01-26 – 2018-03-29.
Part: HOOK — BROKEN (EXTERNAL LOAD) · airframe 6,702 hrs
WHILE FLYING, THE PILOTS FELT A BUMP IN THE AIRCRAFT AND LOOKED DOWN USING THE CARGO MIRRORS TO SEE THE LOAD IMPACT THE WATER. INSPECTION OF THE HOOK SYSTEM WAS DONE AND WAS FOUND TO BE BROKEN, INTERNAL STEEL CABLE STILL INTACT, ALLOWING FOR THE HOOK TO BE MANUALLY ACTUATED AND OPENING THE HOOK AS IT SWUNG FROM SIDE TO SIDE.
Part: DRIVE SHAFT — SHEARED (TAIL ROTOR) · airframe 6,689 hrs
AFTER THE FLIGHT HAD BEEN COMPLETED AND THE AIRCRAFT WAS BACK ON THE SHIP AND CHOCKED AND CHAINED THE CREW PROCEEDED TO PERFORM THE FRESH WATER RINSE OF THE ENGINES. WITH THE #2 ENGINE AT FLIGHT IDLE AND THE #1 ENGINE AT GROUND IDLE THE FOR THE ENGINE RINSE THE PILOTS HEARD WHAT THEY THOUGHT WAS A COMPRESSOR STALL AND FELT A ROUGH SHUDDER THROUGH THE AIRFRAME. THE ENGINE RINSE WAS STOPPED AND THE PILOTS FELT ANOTHER SHUDDER IN THE AIRFRAME. THEY NOTICED AN RISE IN NG AND NR ON THE GAUGES AND OPTED TO BRING THE #2 ENGINE BACK TO GROUND IDLE. THE DECISION WAS MADE TO SHUTDOWN BOTH ENGINES. THE ROTOR BRAKE WAS APPLIED AND WHEN THE MAIN ROTORS STOPPED THE TAIL ROTOR CONTINUED TO SPIN UNTIL IT STOPPED ON ITS OWN. AN INSPECTION OF THE AIRFRAME FOUND A TEAR IN ONE OF THE TAIL ROTOR DRIVE SHAFT COWLING AND UPON FURTHER INSPECTION FOUND THAT THE 7TH SHAFT IN A SERIES OF 8 HAD SHEARED IN THE MIDDLE WITH A 5 INCH SECTION TORN OFF. THERE WERE SCRAPES ON THE DECK OF THE TAIL BOOM WITH A SHEARED RIVET AND A DIME SIZE HOLE IN THE DECK.