AD 70-18-03

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AD Number:
70-18-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Pilatus Model PC-6/B1-H2 Airplanes
Subject:
Flight Manual and Switch
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
08/31/1970
Make:
Pilatus Aircraft Limited
Model:
PC-6/B1-H2
Product Type:
Aircraft
Product Subtype:
Small 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Superseded AD: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Superseded By: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: 70-18-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-1071

AD NUMBER:   70-18-03

SUBJECT HEADING:   Airworthiness Directives; Pilatus Model PC-6/B1-H2 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective August 31, 1970.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   70-18-03 PILATUS AIRCRAFT WORKS, LTD: Amdt. 39-1071. Applies to Model PC-6/B1-H2 airplanes, serial numbers up to and including 711; 2001, 2004 through 2010, and 2040.
Compliance is required as indicated, unless already accomplished.
(a) Within the next 25 hours' time in service after the effective date of this AD, revise the approved Airplane Flight Manual in accordance with Pilatus Service Bulletin No. 100, dated March 1970, or later Swiss Federal Air Office issue or an FAA-approved equivalent, to incorporate the Emergency Procedures to be followed in case of inadvertent propeller feathering.
(b) For antireversing switches, P/N 973.10.11.101, with 975 or more hours' time in service on the effective date of this AD, within 25 hours' time in service from the effective date of this AD, and thereafter at intervals not to exceed 2,000 hours' time in service from the last replacement, replace the antireversing switch with a new switch of the same part number and readjust the antireversing and reversing system in accordance with Pilatus Service Bulletin No. 100, dated March 1970, or later Swiss Federal Air Office approved issue or an FAA-approved equivalent.
(c) For antireversing switches, P/N 973.10.11.101, with less than 975 hours' time in service on the effective date of this AD, within the next 25 hours' time in service from the effective date of this AD perform the functional tests on the antireversing switch in accordance with Pilatus Service Bulletin No. 100, dated March 1970, or later Swiss Federal Air Office approved issue or an FAA-approved equivalent. If the switch does not malfunction, readjust the antireversing and reversing system in accordance with that service bulletin and thereafter comply with paragraph (d). If the switch malfunctions, comply with paragraph (c).
(d) If the antireversing switch does not malfunction during the functional tests required by paragraph (c), before the accumulation of 1,000 hours' total time in service on the antireversing switch, and thereafter at intervals not to exceed 2,000 hours' time in service from the last replacement, replace the switch with a new switch of the same part number and readjust the antireversing and reversing system in accordance with Pilatus Service Bulletin No. 100, dated March 1970, or later Swiss Federal Air Office approved issue or an FAA-approved equivalent.
(e) If the antireversing switch malfunctions during the functional tests required by paragraph (c), before further flight, and thereafter at intervals not to exceed 2,000 hours' time in service from the last replacement, replace the antireversing switch with a new switch of the same part number and readjust the antireversing and reversing system in accordance with Pilatus Service Bulletin No. 100, dated March 1970, or later Swiss Federal Air Office approved issue or an FAA-approved equivalent.
This amendment becomes effective August 31, 1970.

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