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N159AC

Open the Markdown

1970 Sikorsky S-64F · Pratt & Whitney JFTD12A series

Open in FAA registry

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Registered owner
Helicopter Express LLC
Location
Chamblee, GA
Owner type
LLC
Serial number
64084
Year built
1970
Type
Rotorcraft
Engine
Turbo-shaft
Airworthiness
Standard, transport
Airworthiness date
June 8, 1999
Certificate issued
December 5, 2023
Expires
December 31, 2030
Mode S code
A0EBA1
Sikorsky S-64FAirframe model · 3 seats · 2 engines · 5 registeredTCDS H6EAAirframe · Sikorsky S-64FTCDS E15EAEngine · Pratt & Whitney JFTD12A series

From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Pratt & Whitney JFTD12A model are included below.

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Airworthiness directives that may apply · 9

Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.

1974In forceSuperseded2026
Superseded and historical ADs · 3
AD 2021-23-13Ground Proximity SystemHistoricalEffective Dec 9, 2021 · Replaced by AD 2023-11-07AD 97-10-15Main Gearbox Second Stage Lower Planetary PlateHistoricalEffective Jun 27, 1997 · Replaced by AD 2012-26-06AD 77-20-01Main Transmission Lower Planetary PlatesHistoricalReplaced by AD 97-19-10

Information bulletins that may apply

Advisory, not mandatory.

No bulletins matched this aircraft’s models

NTSB investigations

No NTSB investigations matched to N159ACMatched by N-number and event date, checked against the reported serial number, make and model. Investigations from before this aircraft carried the mark are under Earlier aircraft. Investigations on Sikorsky S-64F aircraft

FAA incident reports · 1

FAA accident and incident reports matched to this aircraft by N-number and event date, checked against the reported make and model.

Incident 20221001009409ICentral Point, ORThe flight was maintenance related for a return to service validation. The portions of the flight leading to the incident were uneventful and the maintenance related tasks were satisfactory. The final flight check required hovering the aircraft near max gross…Oct 1, 2022 · Reported as Sikorsky SK-64 · Minor damage

Service difficulty reports · 22

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

SDR JYDR20201013282Attach Bolt · brokenPILOTS SUDDENLY FELT A VIBRATION AND HEARD A HOWLING NOISE. THEY RETURNED TO THE LANDING SITE AND SHUT DOWN. AT INSPECTION, MAINTENANCE FOUND 1 OF 3 NAS628-15 BOLT BROKEN IN HALF ON THE NR 2 HIGH SPEED SHAFT ON THE FORWARD END, WHERE IT ATTACHES TO THE FREE Oct 13, 2020 · N159AC · Skrsky S64F · Engine/Transmission CouplingSDR JYDR20201008218Engine · overtempAIRCRAFT WAS ON SHORT FINAL AT 50 FT AGL WHEN NR 1 ENGINE LOW SPEED CHIME CAME ON. PILOT NOTED DECREASING N1 RPM WITH RISING T% (ROLLBACK). PROPER ENGINE IDENTIFIED AND SHUT DOWN. RECORDING T5 INDICATOR CHECKED AND FOUND ENGINE HAD REACHED 784C FOR 4 SECONDOct 7, 2020 · N159AC · Skrsky S64F · Engine (Turbine/Turboprop)SDR JYD2006F00000Bearing · spalledBEARING OUTER RACE SPALLED AND CRACKED. SPALLING AND CRACK ARE ON NR1 BEARING ROW ONLY. CRACK IS APPROXIMATELY 2.25 INCHES LONG. PROBABLE CAUSE IS UNKNOWN. THE BEARING RACE WILL BE ANALYZED TO DETERMINE THE CAUSE. THERE ARE NO RECOMMENDATIONS TO PREVENT REDec 9, 2005 · N159AC · Skrsky CH54B · Main Rotor Mast/Swashplate
See all 22 reports

STCs that may be installed · 31

Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.

See all 31 STCs