Airworthiness directives › 2015-09-06
AD 2015-09-06 Airworthiness Directives; GROB-WERKE Airplanes
Models named: G115EG, G120A. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to GROB-WERKE Model G115EG airplanes, all serial numbers through 82323/E, and Model G120A airplanes, all serial numbers through 85063, certificated in any category.
Compliance
Unless already done, do the actions in paragraphs (f)(1) through (f)(3) of this AD: (1) Within the next 30 days after February 9, 2015 (the effective date retained from AD 2014-26-04), inspect the starter following Part A of the Accomplishment Instructions in GROB Aircraft Service Bulletin No. MSB1078-196, dated July 14, 2014; GROB Aircraft Service Bulletin No. MSB1078-196/1, dated December 1, 2014; GROB Aircraft Service Bulletin No. MSB1121-144, dated July 14, 2014; or GROB Aircraft Service Bulletin No. MSB1121-144/3, dated February 20, 2015, as applicable. (2) If any damage is found on the starter during the inspection required in paragraph (f)(1) of this AD, before further flight, replace the starter with a serviceable part. Do the replacement following Part A of the Accomplishment Instructions in GROB Aircraft Service Bulletin No. MSB1078-196, dated July 14, 2014; GROB Aircraft Service Bulletin No. MSB1078-196/1, dated December 1, 2014; GROB Aircraft Service Bulletin No. MSB1121-144, dated July 14, 2014; or GROB Aircraft Service Bulletin No. MSB1121-144/3, dated February 20, 2015, as applicable. (3) Within the next 100 hours time-in-service after June 16, 2015 (the effective date of this AD), install a starter relay following Part B of the Accomplishment Instructions in GROB Aircraft Service Bulletin No. MSB1078-196/1, dated December 1, 2014, or GROB Aircraft Service Bulletin No. MSB1121-144/3, dated February 20, 2015, as applicable.
Required actions
Actions done before June 16, 2015 (the effective date of this AD) following the Accomplishment Instructions specified in GROB Aircraft Service Bulletin No. MSB1121-144/1, dated January 12, 2015; or GROB Aircraft Service Bulletin No. MSB1121-144/2, dated February 5, 2015, as applicable, are considered acceptable for compliance with the corresponding actions specified in paragraphs (f)(1) through (f)(2) of this AD.
Unsafe condition
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated 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 a defective starter solenoid. We are issuing this AD to detect and correct defective starter solenoids, which could cause an internal short circuit and could result in reduced control. We are superseding AD 2014-26-04, Amendment 39-18055 (80 FR 155, January 5, 2015), requiring installation of a starter relay that will prevent loss of electrical power in case of electrical shortage in the starter solenoid.
Affected ADs
This AD supersedes AD 2014-26-04, Amendment 39-18055 (80 FR 155, January 5, 2015) (“AD 2014-26-04”).
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