AD 76-07-13

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AD Number:
76-07-13
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; HAMBURGER FLUGZEUGBAU GmbH Model HFB-320 Airplanes
Subject:
Camlocks
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
04/26/1976
Make:
Hamburger Flugzeugbau G.m.b.H.
Model:
HFB 320 Hansa
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 76-07-13
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-2579

AD NUMBER:   76-07-13

SUBJECT HEADING:   Airworthiness Directives; HAMBURGER FLUGZEUGBAU GmbH Model HFB-320 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective, April 26, 1976.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
76-07-13 HAMBURGER FLUGZEUGBAU GmbH: Amendment 39-2579. Applies to Model HFB-320 airplanes, S/N 1021 thru 1023, 1026 thru 1028, 1030 thru 1040, 1045, and 1049 thru 1057, certificated in all categories.

Compliance is required within the next 25 hours time in service after the effective date of this AD, unless already accomplished.

To detect possible incorrect adjustment of camlocks that could result in cracking of the camlock housing, possible inadvertent opening of the door, and inflight explosive decompression, accomplish the following:

(a) Inspect the camlocks for correct adjustment in accordance with the accomplishment instructions contained in Section B, Part 1, of HFB Hansa Alert Service Bulletin 53-21A, dated October 13, 1975, as revised January 20, 1976, or an FAA-approved equivalent.

(b) If a camlock is found out of adjustment beyond the tolerances specified in HFB Hansa Alert Service Bulletin 53-21A, dated October 13, 1975, as revised January 20, 1976, or an FAA-approved equivalent, rectify the camlock adjustment in accordance with the accomplishment instructions contained in Section B, Part 2, of Service Bulletin 53-21A, dated October 13, 1975, as revised January 20, 1976, or an FAA-approved equivalent.

(c) Inspect the door frame camlock housings, which house the camlocks for which adjustment is required in accordance with paragraph (b) of this AD, for cracks, using a dye penetrant method in accordance with the instructions contained in Section B, Part 3, of HFB Hansa Alert Service Bulletin 53-21A, dated October 13, 1975, as revised January 20, 1976, or an FAA-approved equivalent.

(d) If any cracks are found in the door frame camlock housing during the inspection required by paragraph (c) of this AD, before further flight, except that the aircraft may be flown unpressurized in accordance with FAR's 21.197 and 21.199 to a base where the replacement can be accomplished, replace the camlock housing with a new part of the same part number.

This amendment becomes effective, April 26, 1976.

FOOTER: