Airworthiness Directive · Amendment 39-14916 · Gulfstream Aerospace LP Model Gulfstream 100 Airplanes, and Model Astra SPX and 1125 Westwind Astra Airplanes
Gulfstream Aerospace LP Model Gulfstream 100 Airplanes, and Model Astra SPX and 1125 Westwind Astra Airplanes
Superseded. A later AD replaced this one: AD 2010-11-02. Comply with the one in force.
This AD applies to Gulfstream Model Gulfstream 100 airplanes; and Model Astra SPX and 1125 Westwind Astra airplanes; certificated in any category; all serial numbers.
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 unsafe condition is incomplete closure of the main entry door, which may result in the door opening in flight, causing damage to wing, fuselage, engine, and/or tail, and possible damage to the airplane. This AD requires actions that are intended to address the unsafe condition described in the MCAI.
Unless already done, do the following actions. Within 10 days after the effective date of this AD, amend section IV, Normal Procedures, of the following Gulfstream airplane flight manuals (AFMs): Model 1125 Astra, 25W-1001-1; Model Astra SPX, SPX-1001-1; and Model G100, G100-1001-1; as applicable; to include the following statement. Insertion of copies of this AD at the appropriate places of the AFMs is acceptable.
“1. BEFORE ENGINE START: (PRE and POST Mod 20052/Gulfstream Service Bulletin 100-31-284): CABIN DOOR—CLOSED (Physically verify door latch handle pin is fully engaged in the handle lock).
2. BEFORE TAXIING: Change the CABIN DOOR procedure as follows (POST Mod 20052/Gulfstream Service Bulletin 100-31-284): Check CABIN DOOR light—OUT.
3. BEFORE TAKE-OFF: Insert between the POSITION lights switch and the THRUST LEVERS procedures: (PRE Mod 20052/Gulfstream Service Bulletin 100-31-284): Check CABIN DOOR light—OUT (50% N1 may be required).
(POST Mod 20052/Gulfstream Service Bulletin 100-31-284): Check CABIN DOOR light—OUT; CABIN DOOR SEAL light—OUT (50% N1 may be required).”
Note 1: Mod 20052 is equivalent to Gulfstream Service Bulletin 100-31-284, dated August 17, 2006.
Note 2: This AD may be accomplished by a holder of a Private Pilot's License.
Note 3: This AD differs from the MCAI and/or service information as follows: We revised the order in which the AFM procedures for verifying closure and locking of the main entry door appear in the MCAI. We also removed one procedure under “BEFORE TAXIING” for verifying the cabin door seal light is out (Post Mod 20052/Post Gulfstream Service Bulletin 100-31-284) and for verifying the cabin door light is out (Pre Mod 20052/Pre Gulfstream Service Bulletin 100-31-284).
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.
