Airworthiness Directive · Amendment 39-12006 · British Aerospace HP137 Mk1 and Jetstream Series 200 Airplanes
British Aerospace HP137 Mk1 and Jetstream Series 200 Airplanes
This AD affects HP137 Mk1 and Jetstream series 200 airplanes, all serial numbers, that are certificated in any category.
This amendment adopts a new airworthiness directive (AD) that applies to all British Aerospace HP137 Mk1 and Jetstream series 200 airplanes. This AD requires you to inspect the vertical stabilizer skin for disbonding, corrosion, cracks, and loose rivets, and repair any vertical stabilizer skin where discrepancies are found. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the United Kingdom. The actions specified by this AD are intended to prevent failure of the vertical stabilizer caused by disbonding, corrosion, cracks, or loose rivets in the stabilizer skin. Such failure could lead to aircraft controllability problems.
To address this problem, you must accomplish the following:
| Action | Compliance time | Procedures |
|---|---|---|
| (1) Inspect the right and left hand side of the vertical stabilizer skin for disbonding, corrosion, cracks, and loose rivets | Within the next 60 calendar days after January 12, 2001 (the effective date of this AD) | In accordance with the ACCOMPLISHMENT INSTRUCTIONS section of British Aerospace Jetstream Alter Service Bulletin 55-A-JA-990640, Issued: September 1, 1999. |
| (2) Repair any vertical stabilizer skin where a discrepancy is found | Prior to further flight after the inspection | Use the procedures in the maintenance manual if the discrepancies are within the limits specified in the maintenance manual. Use an FAA-approved repair scheme obtained from British Aerospace at the address specified in paragraph (h) of this AD if the discrepancies are outside the limits specified in the maintenance manual. |
Note 1: British Aerospace Jetstream Alert Service Bulletin 55-A-JA-990640, Issued: September 1, 1999, specifies reporting the results of the inspections to British Aerospace Regional Aircraft. The FAA highly recommends that each owner/operator submit this information. British Aerospace and the British CAA will use this information to determine whether repetitive inspections are necessary, and, if so, at what intervals. The FAA will evaluate the information from the British CAA and may initiate further rulemaking action to propose a repetitive inspection requirement.
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.
