Airworthiness directives › 2005-10-23
AD 2005-10-23 Airworthiness Directives; DG Flugzeugbau GmbH Model DG-500MB Sailplanes and Glaser-Dirks Flugzeugbau GmbH Model DG-800B Sailplanes
Applicability*9
(c) This AD affects all Model DG-500MB and DG-800B sailplanes that are: (1) Certificated in any category; and (2) Equipped with a Solo engine.
Required actions
(e) To address this problem, you must do the following: Actions Compliance Procedures (1) Inspect the propeller for any signs of damage Within 25 hours time-in-service (TIS) after June 30, 2005 (the effective date of this AD) Follow DG Flugzeugbau Technical Note No. 843/19 (LBA approved on April 7, 2004; EASA approved on April 26, 2004); and DG Flugzeugbau Technical Note 873/29 (LBA approved on April 7, 2004; EASA approved April 26, 2004), as applicable. (2) If any damage is found during the inspection required in paragraph (e)(1) of this AD, replace the propeller Before further flight after the inspection required in paragraph (e)(1) approved on this AD Follow DG Flugzeugbau Technical Note No. 843/19 (LBA approved on April 7, 2004; EASA approved on April 26, 2004); and DG Flugzeugbau Technical Note 873/29 (LBA approved on April 7, 2004; EASA approved April 26, 2004), as applicable. (3) Insert the following language in the Limitations Section of the AFM: “Caution: With high temperatures (temperature on ground above 25 °C/77 °F) there is the risk of overheating the propeller after engine retraction. To avoid damage, extend the engine again via the manual switch (approx. 1 second) to open the engine doors. Retract again after 5 minutes.” Within 25 hours TIS after June 30, 2005 (the effective date of this AD) The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7) may do the flight manual changes requirement of this AD. Make an entry in the aircraft records showing compliance with this portion of the AD following section 43.9 of the Federal Aviation Regulations (14 CFR 43.9). Note: For Model DG-500MB sailplanes, FAA recommends you install a polyurethane shock absorber at the retaining cable mounting in the fuselage. This is specified in DG Flugzeugbau Technical Note No. 843/19 (LBA approved on April 7, 2004; EASA approved on April 26, 2004). The approximate cost to install the shock absorber is $520 (4 work hours × $65 per hour for labor = $260 + $260 for parts). Starting with serial number 5E243B20 and on, this shock absorber is being installed at production.
Unsafe condition
(d) This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions specified in this AD are intended to detect and correct damage to the propeller, which could result in failure of the propeller to perform properly. This failure could lead to reduced or loss of control of the sailplane.
Affected ADs
(b) None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1