Airworthiness Directive · Amendment 39-15545 · Landing gear
British Aerospace Regional Aircraft Model HP.137 Jetstream Mk.1, Jetstream Series 200 and 3101, and Jetstream Model 3201 Airplanes
This AD applies to Model HP.137 Jetstream Mk.1, Jetstream Series 200 and 3101, and Jetstream Model 3201 airplanes, all serial numbers, certificated in any category.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Unless already done, do the following actions:
(1) Within the next 3 months after July 16, 2008 (the effective date of this AD), initially inspect the left and right nose wheel attachments to the axle following British Aerospace Jetstream Series 3100 and 3200 Service Bulletin 32-JA070241, dated July 13, 2007.
(2) Repetitively thereafter inspect the left and right nose wheel attachments to the axle at the intervals specified in Table 1 of this AD following British Aerospace Jetstream Series 3100 and 3200 Service Bulletin 32-JA070241, dated July 13, 2007. If during any repetitive inspection the gap measurement changes from the previous inspection measurement, adjust the repetitive inspection interval as necessary based on Table 1 of this AD.
| If the measured gap size is: | Then repetitively inspect at the following intervals: |
|---|---|
| 0.002 through 0.005 inches (0.05 through 0.13 mm) | Within 500 hours time-in-service (TIS). |
| More than 0.005 through 0.010 inches (0.13 through 0.25 mm) | Within 1,000 hours TIS. |
| More than 0.010 through 0.020 inches (0.25 through 0.51 mm) | Within 2,000 hours TIS. |
| More than 0.020 inches (0.51 mm) | Within 3,000 hours TIS. |
(3) Before further flight, if during any of the inspections required in paragraphs (f)(1) or (f)(2) of this AD you find the gap between the inner flange of the outer cone and the axle end face is less than 0.002 inches (0.05 mm), replace all worn parts.
Note 1: Replacement of parts does not constitute terminating action for the inspection requirements of this AD.
Note 2: This AD differs from the MCAI and/or service information as follows: No differences.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
