OpenAirDocs.org

N102UM

Open the Markdown

1981 Aerospatiale AS-355E TWIN STAR · Allison 250-C20 series

Open in FAA registry

© OpenStreetMap
Registered owner
Timberland Helicopters Inc
Location
Ashland, OR
Owner type
Corporation
Serial number
5075
Year built
1981
Type
Rotorcraft
Engine
Turbo-shaft
Airworthiness
Standard, normal
Airworthiness date
April 19, 1984
Certificate issued
May 2, 2017
Expires
May 31, 2027
Mode S code
A00DF0
Aerospatiale AS-355E TWIN STARAirframe model · 7 seats · 2 engines · 1 registeredTCDS H11EUAirframe · Aerospatiale AS-355E TWIN STARTCDS E4CEEngine · Allison 250-C20 series

From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Allison 250-C20 model are included below.

On this page

Airworthiness directives that may apply · 105

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

1972In forceSuperseded2026
See all 143 ADs

Information bulletins that may apply · 6

Advisory, not mandatory.

NTSB investigations · 1

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

NTSB WPR23LA278Accident · No injuriesClass 3 · LimitedFinal reportFarmington, UTThe premature failure of one of the No. 2 engine compressor bleed valve, which resulted in a partial loss of power to that engine.Jul 19, 2023 · Substantial damage

FAA incident reports · 2

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

Accident 20230719008919ALanding: Approach · Farmington, UTThe flight was to drop off a vegetation removal crew, who were contracted by rocky mountain power to remove vegetation surrounding power lines. Three did not speak english, so the fourth translated for them during the preflight briefing. The pilot has not…Jul 19, 2023 · Substantial damageIncident 19900907056619IForced/Precautionary Landing · Ann Arbor, MILeft engine fire warning. Landed. Right engine fire warning. Broken bleed air fitting caused fire. Melted oil jet.Sep 7, 1990 · Minor damage

Service difficulty reports · 2

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

SDR 2014F00158Fire Warning · activatedLEFT ENGINE FIRE LIGHT ILLUMINATED IN FLIGHT.Sep 25, 2014 · N102UM · Aerosp AS355E · Fire DetectionSDR 99ZZZX3541Gearbox · making metalMAIN ROTOR TRANSMISSION CHIP LIGHT CAME ON IN-FLIGHT WHILE LANDING AT ITS BASE OF OPERATION. MAINTENANCE REMOVED CHIP PLUG. SEVERAL CHIPS WERE FOUND ON PLUG. EXAMINED OIL FILTER METAL AND ALUMINUM WAS PRESENT IN FILTER. REMOVED BEVEL REDUCTION GEARBOX ON CJul 29, 1999 · N102UM · Aerosp AS355E · Main Rotor Gearbox

STCs that may be installed · 284

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

See all 284 STCs