AD 98-12-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Honeywell International Inc. | TPE331-10 | Airworthiness Directives; AlliedSignal Inc. Model TPE331 Series Turboprop Engines |
| engine | Honeywell International Inc. | TPE331-10A | Airworthiness Directives; AlliedSignal Inc. Model TPE331 Series Turboprop Engines |
| engine | Honeywell International Inc. | TPE331-10AV | Airworthiness Directives; AlliedSignal Inc. Model TPE331 Series Turboprop Engines |
| engine | Honeywell International Inc. | TPE331-10B | Airworthiness Directives; AlliedSignal Inc. Model TPE331 Series Turboprop Engines |
| engine | Honeywell International Inc. | TPE331-10G | Airworthiness Directives; AlliedSignal Inc. Model TPE331 Series Turboprop Engines |
| engine | Honeywell International Inc. | TPE331-10GP | Airworthiness Directives; AlliedSignal Inc. Model TPE331 Series Turboprop Engines |
| engine | Honeywell International Inc. | TPE331-10GR | Airworthiness Directives; AlliedSignal Inc. Model TPE331 Series Turboprop Engines |
| engine | Honeywell International Inc. | TPE331-10GT | Airworthiness Directives; AlliedSignal Inc. Model TPE331 Series Turboprop Engines |
| engine | Honeywell International Inc. | TPE331-10J | Airworthiness Directives; AlliedSignal Inc. Model TPE331 Series Turboprop Engines |
| engine | Honeywell International Inc. | TPE331-10N | Airworthiness Directives; AlliedSignal Inc. Model TPE331 Series Turboprop Engines |
Unsafe Condition
Fuel leakage at the fuel manifold fittings, resulting in fuel spraying on hot turbine components, which could result in an engine fire.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Check fuel manifold identification bands for specified part numbers and repair facility records. Remove and replace fuel manifolds with P/N 3102469-1/-2 repaired by Hoses Unlimited prior to November 20, 1995, at first access, next hot section inspection, or within 3 years after August 7, 1998, whichever comes first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
at first access to the fuel manifold assembly, at the next engine hot section inspection, or 3 years after the effective date of this AD, whichever occurs first
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
AlliedSignal Inc. Model TPE331-8, -10, -11, and -12 series turboprop engines with fuel manifold P/N 3102469-1/-2 repaired by Hoses Unlimited prior to November 20, 1995, installed on specified aircraft models.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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