Airworthiness Directive · Amendment 39-14989 · Przedsiebiorstwo Doswiadczalno-Produkcyjne Szybownictwa “PZL-Bielsko” Model SZD-50-3 “Puchacz” Gliders
Przedsiebiorstwo Doswiadczalno-Produkcyjne Szybownictwa “PZL-Bielsko” Model SZD-50-3 “Puchacz” Gliders
This AD applies to Model SZD-50-3 “Puchacz” Gliders, 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, within the next 3 calendar months after April 19, 2007 (the effective date of this AD), install the extra pull rod between the rear pedals and turnbuckle adjusting screws following Allstar PZL Glider Sp. Z o.o. Mandatory Service Bulletin No. BE-057/SZD-50-3/2006 “PUCHACZ”, dated October 16, 2006, except as specified in paragraphs (e)(1) through (e)(4) of this AD. For owners/operators that have installed an additional short cable between the rear seat pedal and turnbuckle prior to Allstar PZL's issuance of Mandatory Service Bulletin No. BE-057/SZD-50-3/2006 “PUCHACZ”, dated October 16, 2006, this additional short cable assembly must comply with the requirements of Allstar PZL Glider Sp. Z o.o. Mandatory Service Bulletin No. BE-057/SZD-50-3/2006 “PUCHACZ”, dated October 16, 2006. Upon completion, a logbook entry is required.
(1) Paragraph 1 of Allstar PZL Glider Sp. Z o.o. Mandatory Service Bulletin No. BE-057/SZD-50-3/2006 “PUCHACZ”, dated October 16, 2006, describes the dimension length of the extra segment pull rod to be 140 mm. Modify this to read: “140 mm (5.5118 inches).”
(2) Paragraph 4 of Allstar PZL Glider Sp. Z o.o. Mandatory Service Bulletin No. BE-057/SZD-50-3/2006 “PUCHACZ”, dated October 16, 2006, describes the dimensions of the short pull rod to be 3 mm diameter core and approximately 140 mm. Modify this to read: “3 mm (0.1181 inch) and 140 mm (5.5118 inches).”
(3) Paragraph 4.4 of Allstar PZL Glider Sp. Z o.o. Mandatory Service Bulletin No. BE-057/SZD-50-3/2006 “PUCHACZ”, dated October 16, 2006, describes a 1 mm diameter cotter pin. Modify this to read: “1 mm (0.03937 inch).”
(4) Paragraph 5 of Allstar PZL Glider Sp. Z o.o. Mandatory Service Bulletin No. BE-057/SZD-50-3/2006 “PUCHACZ”, dated October 16, 2006, reads, “The parts necessary for modification are available at Allstar PZL Glider, or substitute aircraft parts may be used—capable to withstand a load of 6100N at minimum.” Change this to read: “The parts necessary for modification are available at Allstar PZL Glider, or substitute aircraft parts may be used—capable to withstand a load of 6100N (1,372 lbs) at minimum. If a substitute part is used, the hole diameter specified in Figure 1 of the service bulletin as ‘Ø 6 Hg' means a 6 mm (0.2362 inch) diameter hole with a dimensional tolerance of +0.03 mm (+0.0012 inch). Contact the manufacturer for further details.”
Note: This AD differs from the MCAI and/or service information as follows: Paragraphs (e)(1) through (e)(4) of this AD have been added to clarify certain procedures in the service bulletin.
