AD 85-22-06 R1

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AD Number:
85-22-06 R1
Document Type:
AD Final Rules
Docket Number:
85-CE-11-AD
Subject Heading:
Airworthiness Directives; FAIRCHILD AIRCRAFT CORPORATION (formerly Swearingen Aviation Corporation)...Show more
Subject:
Stall Avoidance System (SAS)
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/19/1990
Make:
M7 Aerospace LLC
Model:
SA226-AT | SA226-T | SA226-TC | SA226-T(B) | SA227-AC (C-26A) | SA227-AT | SA227-TT
Product Type:
Aircraft
Product Subtype:
Small/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Superseded AD: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Superseded By: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: 85-22-06 R1
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   85-CE-11-AD

AMENDMENT:   39-6675

AD NUMBER:   85-22-06 R1

SUBJECT HEADING:   Airworthiness Directives; FAIRCHILD AIRCRAFT CORPORATION (formerly Swearingen Aviation
Corporation) Models SA226-T, SA226-AT, SA226-TC, SA226- T(B), SA227-AC, SA227-TT, SA227-AT, Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective October 19, 1990.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
85-22-06 R1 FAIRCHILD AIRCRAFT CORPORATION (formerly Swearingen Aviation Corporation): Amendment 39-5158 as revised by Amendment 39-6675. Docket No. 85-CE-11- AD.

Applicability: Models SA226-T (Serial Numbers (S/N) T201 thru T275, T277 thru T291); SA226-AT (S/N AT001 thru AT419, AT003E, AT038E, AT062E, AT064E); SA226-TC (S/N TC201 thru TC419, TC208E, TC211E, TC211EE, TC211EEE, TC211EEEE, TC222E, TC227E, TC228E, TC229E, TC234E, TC237E, TC238E, TC239E, TC331E, TC334E;) SA226- T(B) (S/N T(B)276, T(B)292 thru T(B)417, T(B)303E); SA227-AC (S/N AC406, AC415, AC416, AC420 thru AC601, AC603); SA227-TT (S/N TT421 thru TT535, TT537 thru TT541); SA227-AT (S/N AT423 thru AT526, AT528, AT530 thru AT535, AT537 thru AT585) airplanes certificated in any category.

Compliance: Required within the next 100 hours time-in-service after the effective date of this AD unless previously accomplished in accordance with AD 85-22-06, Amendment 39-5158, and thereafter as indicated below, at the next scheduled interval. To assure proper operation of the Stall Avoidance System (SAS), accomplish the following:

(a) Except as noted in paragraph (b) of this AD, modify and/or inspect the applicable airplanes in accordance with the manufacturer's service bulletins, at the initial and repetitive time- in-service intervals, as specified for the model and serial numbered airplanes, set forth in Table 1 below:

Table 1

When performing a functional check of the SAS Servo (Bendix only) allow the servo to run for a minimum of 5 minutes prior to accomplishing the functional check. If the temperature is below 0oC, allow the servo (Bendix only) to run for a minimum of 10 minutes prior to accomplishing the functional check.

Model	Serial Number	Fairchild Service
Bulletin	Compliance Interval
Hrs-Time in Service

SA226-T	T201 thru T275	226-A27-024	one time only
	T277 thru T291	226-A27-028	one time only
		226-27-038	
		Para. 2.A	200
		Para. 2.B	500
		Para. 2.C.	500
		Para. 2.D.	800
SA226-AT	AT001 thru AT073,	226-A27-024	one time only
	AT003E, AT038E,		
	AT062E, AT064E		
		226-27-038	
		Para. 2.A	200
		Para. 2.B	500
		Para. 2.C.	500
		Para. 2.D.	800
	AT074 thru AT419	226-27-038	
		Para. 2.A	200
		Para. 2.B	500
		Para. 2.C.	500
		Para. 2.D.	800
			
SA226-TC	TC201 thru TC314,	226-A27-024	one time only
	TC208E, TC211E,		
	TC211EE, TC211EEE,	226-27-038	
	TC211EEEE, TC222E	Para. 2.A	200
	TC227E, TC228E	Para. 2.B	500
	TC229E, TC234E,	Para. 2.C.	500
	TC237E, TC238E	Para. 2.D.	800
	TC239E		
	TC315 thru TC419	226-27-038	
	TC331E, TC334E	Para. 2.A	200
		Para. 2.B	500
		Para. 2.C.	500
		Para. 2.D.	800
SA226-T(B)	T(B)276,	226-A27-028	one time only
	T(B)292 thru	226-A27-033	one time only
	T(B)391		
		226-27-037	
		Para. 2.A	200
		Para. 2.B	500
		Para. 2.C.	2000
	T(B)392 thru	226-27-033	one time only
	T(B)417,	226-27-037	
	T(B)303E	Para. 2.A	200
		Para. 2.B	500
		Para. 2.C.	2000
			
SA227-AC	AC420 thru AC551	227-A27-004	one time only
		227-27-006	
		Para. 2.A	200
		Para. 2.B	500
		Para. 2.C.	2000
	AC406, AC415,	227-27-006	
	AC416, AC552 thru	Para. 2.A	200
	AC601, AC603	Para. 2.B	500
		Para. 2.C.	2000
SA227-TT	TT421, thru TT526,	227-A27-004	one time only
	TT528, TT530 thru	227-27-006	
	TT535	Para. 2.A	200
		Para. 2.B	500
		Para. 2.C.	2000
	TT527, TT529,	227-27-004	one time only
	TT536 thru TT541		
SA227-AT	AT423 thru AT526	227-A27-004	one time only
	AT528, AT530 thru	227-27-006	
	AT535, AT537 thru	Para. 2.A	200
	AT549	Para. 2.B	500
		Para. 2.C.	2000
	AT550 thru AT585	227-27-006	
		Para. 2.A	200
		Para. 2.B	500
		Para. 2.C.	2000

(b) Modify and/or inspect those Model SA226 and SA227 series airplanes which are equipped with the Conrac SAS system (per STC SA4725SW) in accordance with Table 2 as follows:

Table 2

When performing a functional check of the SAS Servo (Bendix only) allow the servo to run for a minimum of 5 minutes prior to accomplishing the functional check. If the temperature is below 0oC, allow the servo (Bendix only) to run for a minimum of 10 minutes prior to accomplishing the functional check.

Model	Serial Number	Fairchild Service
Bulletin	Compliance
Interval Hrs-Time in Service

Any applicable Model SA226
and SA227 airplanes
incorporating STC SA4725SW
	226-27-037	
Para. 2.A	200
Para. 2.B	500
Para. 2.C	2000

NOTE 1: The current issue date and subject matter of the Service Bulletins specified in Table 1 are as follows:

(1) 226-A27-024 - "Flight controls - Elevator," dated 11/13/79.

(2) 226-A27-028 - "Flight controls - Rudder and Elevator," dated 12/11/80.

(3) 226-A27-033 - "Flight controls - Elevator," dated 12/3/82, revised 1/6/83.

(4) 227-A27-004 - "Flight controls - Elevators," dated 12/3/82, revised 1/6/83.

(5) 226-27-037 - "Conrac SAS System - Inspection and Recalibration," dated 2/15/85, revised 4/15/88.

(6) 226-27-038 - "Rosemount SAS System - Inspection and Recalibration," dated 2/15/85, revised 1/16/90.

(7) 227-27-006 - "Conrac SAS System - Inspection and Recalibrations," dated 2/15/85, revised 4/15/88.

(c) If the inspections specified in paragraphs (a) and (b) of this AD necessitate replacement of the servo pusher, assure that the replacement unit is either new, overhauled, or meets the limits of the electrical test specified in the above revised service bulletins.

(d) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished.

(e) An alternate method of compliance or adjustment of the initial or repetitive compliance times which provides an equivalent level of safety may be approved by the Manager, Airplane Certification Office, Fort Worth, Texas 76193-0150; Telephone (817) 624-5150.

NOTE 2: The request should be forwarded through an FAA Maintenance Inspector, who may add comments and then send it to the Manager, Airplane Certification Office, Fort Worth, Texas.

All persons affected by this directive may obtain copies of the documents referred to herein upon request to the Fairchild Aircraft Corporation, P.O. Box 790490, San Antonio, Texas 78279- 0490; or may examine these documents at the FAA, Central Region, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

Airworthiness Directive 85-22-06 R1 revises AD 85-22-06, Amendment 39-5158.

This amendment (39-6675, AD 85-22-06 R1) becomes effective on October 19, 1990.

FOOTER: