AD 96-08-02

final rule
Data completeness: 70%

Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers

AD Number
96-08-02
Status
final_rule
Effective Date
Product Category
propeller
Docket
96-ANE-05
FR Citation
Federal Register: April 24, 1996 (Volume 61, Number 80)

Applicability

TypeManufacturerModelDetails
aircraft Hamilton Standard Division | Hamilton Sundstrand 6/5500/F-1 Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers
aircraft Hamilton Standard Division | Hamilton Sundstrand 6/5500/F-2 Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers
aircraft Hamilton Standard Division | Hamilton Sundstrand 14RF-19 Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers
aircraft Hamilton Standard Division | Hamilton Sundstrand 14RF-21 Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers
aircraft Hamilton Standard Division | Hamilton Sundstrand 14RF-9 Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers
aircraft Hamilton Standard Division | Hamilton Sundstrand 14SF- 5 Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers
aircraft Hamilton Standard Division | Hamilton Sundstrand 14SF- 7 Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers
aircraft Hamilton Standard Division | Hamilton Sundstrand 14SF-11 Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers
aircraft Hamilton Standard Division | Hamilton Sundstrand 14SF-15 Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers
aircraft Hamilton Standard Division | Hamilton Sundstrand 14SF-17 Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers

Unsafe Condition

Separation of a propeller blade due to cracks initiating in the blade taper bore, which can result in aircraft damage and possible loss of aircraft control.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Conduct ultrasonic shear wave inspections of propeller blade taper bores for cracks. Blades with readings exceeding acceptable limits must be removed and replaced with serviceable blades. Repair taper bore using the new process (reaming damaged material, eddy current inspection, fluorescent penetrant inspection, wall thickness check, and shotpeening) or replace blades if repairs exceed limits. Compliance with repair deadlines: July 31, 1996 for Model 14RF-9 and February 28, 1997 for other models.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

No later than July 31, 1996 for Model 14RF-9 and February 28, 1997 for other affected propeller 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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