Registered owner
T Bone Air LLC
Location
Missoula, MT
Owner type
LLC
Serial number
HH-139
Year built
1960
Type
Fixed wing multi engine
Engine
Reciprocating
Airworthiness
Standard, normal
Airworthiness date
January 24, 1992
Certificate issued
July 13, 2011
Expires
July 31, 2027
Mode S code
AA8576

From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Lycoming GSO&IGSO-480 model are included below.

On this page

Airworthiness directives that may apply · 24

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

1962In forceSuperseded2026
ADs by the year they took effect: 23 ADs
19621
19691
19702
19781
19792
19801
19841
19851
19911
19921
19971
19991
20002
20011
20041
20052
20121
20221
20231
See all 25 ADs

Information bulletins that may apply · 3

Advisory, not mandatory.

NTSB investigations

No NTSB investigations matched to N7770XMatched 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 Beech H50 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.

Service difficulty reports

No reports matched to N7770XGeneral aviation reporting is voluntary. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Reports on Beech H50 aircraft

STCs that may be installed · 190

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

See all 190 STCs

Earlier aircraft with this N-number · 1

This aircraft carried N7770X before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.