Safety record in brief:2 NTSB accidents (substantial damage at worst, latest Mar 2023)9 ADs may apply
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The pilot’s inadequate fuel planning, which resulted in fuel exhaustion and a loss of engine power.
From NTSB records; matched by serial number.Read NTSB report (search CAROL for WPR23LA118)
Separation of the power turbine shaft retaining bolt resulting in extensive power turbine area damage and a loss of shaft output power.
From NTSB records; matched by serial number.Read NTSB report (search CAROL for LAX04LA015)
These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2014-03-10 | Various Restricted Category Helicopters | Mar 26, 2014 | Airframe (UH-1B)Only with: Restricted category helicopters with cable assembly part number 205-001-720-001 installed. |
| 2002-20-01 | Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P; and… | Nov 6, 2002 | Airframe (UH-1B)Only with: Main rotor tension-torsion strap P/N 204-012-122-1, 204-012-122-5, 2601399, or 2606650 installed; manufactured by BHTI for the US Armed Forces. |
| 2002-15-04 | Honeywell International, Inc., (formerly AlliedSignal, Inc. and Textron Lycoming)… | Sep 10, 2002 | Engine (T-53 SERIES)Only with: Engines with centrifugal compressor impellers having serial numbers 83317, 83327, 83328, or 83330 installed. |
| 2002-13-51 | Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P; and… | Aug 19, 2002 | Airframe (UH-1B)Only with: Tail rotor grip P/N 205-011-711-101 installed; helicopters manufactured by Bell for the U.S. Armed Forces. |
| 2002-01-31 | Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, UH-1P, and… | Feb 1, 2002 | Airframe (UH-1B)Only with: Manufactured for the U.S. Armed Forces, with main rotor mast P/N 204-011-450-007, -105, or -109, or main rotor trunnion P/N 204-011-105-001 installed. |
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2000-15-21 R1 | Bell Helicopter Textron Inc.-Manufactured Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B… | Nov 7, 2000 | Airframe (UH-1B)Only with: Manufactured by BHTI for the U.S. Armed Forces, with main rotor mast assembly P/N 204-011-450-001 or -005 installed. |
| 2000-15-21 | Bell Helicopter Textron Inc.-Manufactured Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B… | Aug 9, 2000 | Airframe (UH-1B)Only with: Main rotor mast assembly P/N 205-011-450-001 or -005 installed. |
| 99-07-15 | Bell Helicopter Textron, Inc.- manufactured Model HH-1K, SW204, SW204HP, SW205… | May 3, 1999 | Airframe (UH-1B)Only with: Tail rotor yoke P/N 212-011-702 (all dash numbers), P/N 212-010-704 (all dash numbers), or P/N 212-010-744 (all dash numbers) installed. |
| 97-20-09 | Bell Helicopter Textron (Bell)- manufactured Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B… | May 28, 1998 | Airframe (UH-1B)Only with: Tailboom vertical fin spar P/N 205-032-899, 205-030-846, or 205-032-851, all dash numbers, installed. |
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
No Service Difficulty Reports found for this airframe since 1995.