Airworthiness directives › 98-19-04
AD 98-19-04 Airworthiness Directives; Agusta S.p.A. Model A109C, A109E, and A109K2 Helicopters
Models named: A109C, A109E, A109K2. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model A109C, A109E, and A109K2 helicopters, with main rotor blades, part number (P/N) 709-0103-01-all dash numbers, having a serial number (S/N) up to and including S/N 1428 with a prefix of either ``EM-'' or ``A5-'', installed, certificated in any category. Note 1: This AD applies to each helicopter identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For helicopters that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must use the authority provided in paragraph (f) to request approval from the FAA. This approval may address either no action, if the current configuration eliminates the unsafe condition, or different actions necessary to address the unsafe condition described in this AD. Such a request should include an assessment of the effect of the changed configuration on the unsafe condition addressed by this AD. In no case does the presence of any modification, alteration, or repair remove any helicopter from the applicability of this AD.
Compliance
Required within 10 hours time-in-service (TIS), unless accomplished previously, and thereafter at intervals not to exceed 25 hours TIS. To prevent failure of a main rotor blade (blade) blade tip cap and subsequent loss of control of the helicopter, accomplish the following: (a) Conduct a tap inspection of the upperside and lowerside of each blade tip cap for debonding between the metal shells and the honeycomb core using a steel hammer, P/N 109-3101-58-1, or a coin (a quarter) in the area indicated as honeycomb core on Figure 1. BILLING CODE 4910-13-U [[Page 7497]] [GRAPHIC] [TIFF OMITTED] TR16FE99.000 BILLING CODE 4910-13-C [[Page 7498]] (b) Visually inspect the upperside and lowerside of each blade tip cap for swelling or deformation. (c) Using an 8-power or higher magnifying glass, visually inspect the welded bead along the leading edge of each blade tip cap for cracks in the area shown in Figure 1. (d) If any swelling, deformation, crack, or debonding that exceeds the prescribed limits in the applicable maintenance manual is found, replace the blade with an airworthy blade. Note 2: Agusta Bolletino Tecnico No. 109-106, dated July 21, 1998, Agusta Bolletino Tecnico No. 109EP-1, Revision A, dated September 9, 1998, and Agusta Bolletino Tecnico No. 109K-22, dated July 13, 1998, which are applicable to Agusta S.p.A. Model A109C, A109E, and A109K2 helicopters, respectively, pertain to the subject of this AD. (e) Replacement blades affected by this AD must comply with the repetitive inspection requirements of this AD. Replacement of an affected blade with a blade having an airworthy blade tip cap, P/N 709-0103-29-109, is a terminating action for the requirements of this AD for that blade. (f) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Rotorcraft Standards Staff, FAA. Operators shall submit their requests through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Rotorcraft Standards Staff. Note 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Rotorcraft Standards Staff. (g) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the helicopter to a location where the requirements of this AD can be accomplished. (h) This amendment becomes effective on March 3, 1999, to all persons except those persons to whom it was made immediately effective by Priority Letter AD 98-19-04, issued August 31, 1998, which contained the requirements of this amendment. Note 4: The subject of this AD is addressed in Ente Nazionale di Aviazione Civile (Italy) AD 98-271, applicable to Model A109K2 helicopters, dated July 29, 1998; AD 98-275, applicable to Model A109C helicopters and AD 98-276, applicable to Model A109E helicopters, both dated August 4, 1998, and AD 98-319 (which superseded AD 98-276), applicable to Model A109E helicopters, dated September 15, 1998. Issued in Fort Worth, Texas, on February 5, 1999. Eric Bries, Acting Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 99-3589 Filed 2-12-99; 8:45 am] BILLING CODE 4910-13-U
Read the original on the Federal Register →
You just looked this one up by hand
TrackAD holds all 12,278 of them and matches them against the aircraft you actually look after — airframe, engine, propeller and appliances in one pass — then works out what falls due and when.
- Bring your existing list in from a spreadsheet Paste the rows straight out of Excel. Headers like C/W Date and N/A are read for you.
- A copy that works when this does not One file. No internet, no login, no this software running. For the morning something has to be produced and the computer is not cooperating.
- $5 a month, or $50 a year Up to 50 aircraft on either.
Look round a real shop first Start free
The demonstration shop is eleven real aircraft with a year of work behind them. No account needed.
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