AD 86-10-03

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AD Number:
86-10-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Mitsubishi Models MU-300 and MU-300-10 Airplanes
Subject:
Placard - Fire Prevention
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
06/02/1986
Make:
Textron Aviation Inc.
Model:
MU-300 | MU-300-10
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Superseded AD: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Superseded By: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: 86-10-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5312

AD NUMBER:   86-10-03

SUBJECT HEADING:   Mitsubishi Models MU-300 and MU-300-10 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective June 2, 1986.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
86-10-03 MITSUBISHI: Amendment 39-5312. Applies to Model MU-300, Serial Numbers A003SA through A091SA; and Model MU-300-10, Serial Numbers A-1001SA through A1011SA; certificated in any category. To prevent cabin and engine compartment fires, accomplish the following:

A. Within 15 days after the effective date of this AD, affix a placard immediately adjacent to the engine START switch, worded as follows: "AFTER ENGINE(S) START, CONTINUED OPERATION WITH ANY ENGINE START OR DISENGAGE ANNUNCIATION IS PROHIBITED." This placard must consist of 0.1-inch red letters on a white background and may be of a plastic adhesive type, purchased locally. The placard, which is contained with Beech Aircraft Corporation MU-300/MU-300-10 Safety Communique, dated April 1986, is an acceptable placard. The placard may be removed from MU-300 airplanes when the Airplane Flight Manual for these airplanes has been changed in accordance with paragraph B., below, and the airplane has been modified in accordance with paragraph C., below. The placard may be removed from MU-300-10 airplanes when the airplane has been modified in accordance with paragraph C., below.

B. Within 15 days after the effective date of this AD, incorporate the following into the Normal Procedure Starting Engines Section of the MU-300 (Diamond I) Airplane Flight Manual: "CHECK STARTER DISENGAGEMENT AT APPROXIMATELY 32 PERCENT N2. IF STARTER HAS NOT DISENGAGED BY 45 PERCENT N2, PLACE THRUST LEVER IN CUTOFF POSITION AND REMOVE ALL ELECTRICAL POWER." This may be accomplished by including a copy of this AD in the airplane flight manual.

C. Within the next 200 hours time-in-service after the effective date of this AD, replace the airplane starter relay in accordance with Mitsubishi Service Bulletin SB 74-001, dated April 25, 1986 (for Model MU-300 airplanes), or SB 74-002, dated April 25, 1986 (for Model MU-300-10 airplanes), or later FAA-approved revisions.

D. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of the modifications required by this AD.

E. An alternate means of compliance which provides an acceptable level of safety may be used when approved by the Manager, Airplane Certification Branch, FAA, Southwest Region.

This amendment becomes effective on June 2, 1986.

FOOTER: