AD 89-25-10

final rule

Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft

AD Number
89-25-10
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of a riveted aircraft structural panel and frame
Problem area Airframe structure

Applicability

TypeManufacturerModelDetails
aircraft Textron Aviation Inc. 100 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. 65-90 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. 65-A90 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. 65-A90-1 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. 65-A90-2 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. 65-A90-3 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. 65-A90-4 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. A100 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. B100 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. B90 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. C90 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. C90A Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft
aircraft Textron Aviation Inc. E90 Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft

Unsafe Condition

Fatigue cracking of the wing main spar lower cap and associated structure.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect the wing lower forward spar attach fittings, center section and outboard wing spar caps adjacent to the attach fittings using visual, fluorescent penetrant, and eddy current methods per Beech SIRM Part No. 98-39006 Rev A4. Inspect reinforcing straps per Aviadesign E.O. B-8001 Issue 3 for tension and condition. Repair or replace cracked parts per Beech SIRM instructions. Submit inspection reports to FAA within one week.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within the next 200 hours time-in-service (TIS) after the effective date or upon accumulating 3000 hours TIS, whichever occurs later, then every 1000 hours TIS (extendable to 3000 hours TIS if STC straps are installed and inspected).

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Beech Models 65-90, 65-A90 (S/N LJ-1 to LJ-317); 65-A90-1 to 65-A90-4, B90, C90 (all S/N); C90A (S/N LJ-1063 to LJ-1087 except LJ-1085); E90, 100, A100, B100 (all S/N) airplanes.

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Wing Main Spar Inspection

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_89-25-10.html
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AD Number:
89-25-10
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C...Show more
Subject:
Wing Main Spar Inspection
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
01/04/1990
Make:
Textron Aviation Inc.
Model:
100 | 65-90 | 65-A90 | 65-A90-1 | 65-A90-2 | 65-A90-3 | 65-A90-4 | A100 | B100 | B90 | C90 | C90A | E90
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: 89-25-10
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-6409

AD NUMBER:   89-25-10

SUBJECT HEADING:   Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft

ACTION:  

SUMMARY:  

DATES:   Effective January 4, 1990.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   89-25-10 BEECH: Amendment 39-6409.

Applicability: Models 65-90 and 65-A90 (Serial Number (S/N) LJ-1 thru LJ-317); 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90 (all S/N); C90A (S/N LJ-1063 thru LJ-1087, except LJ-1085); E90, 100, A100 and B100 (all S/N) airplanes certificated in any category.

Compliance: Required as indicated after the effective date of this AD, unless already accomplished.

To detect possible fatigue cracking of the wing main spar lower cap and associated structure, accomplish the following:

(a) Within the next 200 hours time-in-service (TIS), after the effective date of this AD, or upon accumulating 3000 hours TIS, whichever occurs later, unless previously accomplished per AD 87-23-09, Amendment No. 39-5765, or AD 70-25-04, Amendment No. 39-1332, and thereafter at intervals not to exceed 1000 hours TIS (except as provided in paragraph (b) below) after the initial inspection, inspect the wing lower forward spar attach fittings, center section and outboard wing spar caps adjacent to the attach fittings by visual, fluorescent penetrant and eddy current methods as specified in the applicable section of Beech Structural Inspection and Repair Manual (SIRM), Part Number 98-39006, Revision A4, dated May 1, 1987. The inspection must be performed by personnel specifically trained by Beech Aircraft Corporation.

NOTE 1: Beech offers a two-day training course free of charge to qualified personnel who have prior knowledge of eddy current inspection techniques. A listing of Beech Corporate maintenance facilities may be obtained from the sources contained in paragraph (g) of this AD. A listing of other facilities employing qualified inspectors is not available.

(b) At each inspection required by paragraph (a) above, inspect any reinforcing strap installed per Supplemental Type Certificate (STC) SA1178CE or SA1583CE for proper tension and condition in accordance with Aviadesign Engineering Order E.O. B-8001, Issue 3, dated May 30, 1985. Correct any discrepancy prior to further flight. For airplanes so equipped and inspected, the repetitive inspection interval of 1000 hours TIS in paragraph (a) above may be extended to 3000 hours TIS.

(c) If any crack is found in a main spar lower cap or fitting, prior to further flight repair or replace the defective part using the instructions and limitations specified in the Beech SIRM or other FAA approved instructions provided by Beech Aircraft Corporation.

(d) Within one week after completion of any inspection required by paragraph (a) or (b) of this AD, complete the reporting form included with this AD as Figure 1 and mail it to the address shown thereon (Reporting approved by the Office of Management and Budget under OMB No. 2120-0056).

(e) The initial and repetitive inspections specified in this AD are no longer required when the airplane is modified by Beech Wing Modification Kit No. 90-4077-1S or 100-4007-1S.

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

(g) 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, Wichita Aircraft Certification Office, FAA, 1801 Airport Road, Room 100, Wichita, Kansas 67209; Telephone (316) 946-4400.

NOTE 2: The request should be forwarded through an FAA Maintenance Inspector, who may add comments and send it to the Manager, Wichita Aircraft Certification Office.

All persons affected by this directive may obtain copies of the documents referred to herein upon request to the Beech Aircraft Corporation, Commercial Service, Department 52, Wichita, Kansas 67201-0085; or Western Aircraft Maintenance, 4444 Aeronca Street, Boise, Idaho 83705, or may examine these documents at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

This AD supersedes AD 87-23-09, Amendment 39-5765, and AD 70-25-04, Amendment 39-1332.

This amendment (39-6409, AD 89-25-10) becomes effective on January 4, 1990.

REPORTING FORM - 89-25-10
Airplane Model No. ___________________________________________________
Airplane Serial No.____________________________________________________
Date of inspection per this AD____________________________________________
Airframe total hours time-in-service________________________________________
Were any fatigue cracks found? No Yes __
If "Yes" was checked above, complete the following:
Location of crack_____________________________________________________
Was crack removable by reaming or grinding? No Yes __
Additional Comments __________________________________________________
Mailing Address:
FAA, Wichita ACO
Airframe Branch, Room 100
1801 Airport Road
Wichita, KS 67209

FIGURE 1 - 89-25-10

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_89-25-10.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
89-25-10
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C...Show more
Subject:
Wing Main Spar Inspection
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
01/04/1990
Make:
Textron Aviation Inc.
Model:
100 | 65-90 | 65-A90 | 65-A90-1 | 65-A90-2 | 65-A90-3 | 65-A90-4 | A100 | B100 | B90 | C90 | C90A | E90
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: 89-25-10
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-6409

AD NUMBER:   89-25-10

SUBJECT HEADING:   Airworthiness Directives; Beech Model 65-90, 65-A90, 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90, C90A, E90, 100, A100 and B100 Aircraft

ACTION:  

SUMMARY:  

DATES:   Effective January 4, 1990.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   89-25-10 BEECH: Amendment 39-6409.

Applicability: Models 65-90 and 65-A90 (Serial Number (S/N) LJ-1 thru LJ-317); 65-A90-1, 65-A90-2, 65-A90-3, 65-A90-4, B90, C90 (all S/N); C90A (S/N LJ-1063 thru LJ-1087, except LJ-1085); E90, 100, A100 and B100 (all S/N) airplanes certificated in any category.

Compliance: Required as indicated after the effective date of this AD, unless already accomplished.

To detect possible fatigue cracking of the wing main spar lower cap and associated structure, accomplish the following:

(a) Within the next 200 hours time-in-service (TIS), after the effective date of this AD, or upon accumulating 3000 hours TIS, whichever occurs later, unless previously accomplished per AD 87-23-09, Amendment No. 39-5765, or AD 70-25-04, Amendment No. 39-1332, and thereafter at intervals not to exceed 1000 hours TIS (except as provided in paragraph (b) below) after the initial inspection, inspect the wing lower forward spar attach fittings, center section and outboard wing spar caps adjacent to the attach fittings by visual, fluorescent penetrant and eddy current methods as specified in the applicable section of Beech Structural Inspection and Repair Manual (SIRM), Part Number 98-39006, Revision A4, dated May 1, 1987. The inspection must be performed by personnel specifically trained by Beech Aircraft Corporation.

NOTE 1: Beech offers a two-day training course free of charge to qualified personnel who have prior knowledge of eddy current inspection techniques. A listing of Beech Corporate maintenance facilities may be obtained from the sources contained in paragraph (g) of this AD. A listing of other facilities employing qualified inspectors is not available.

(b) At each inspection required by paragraph (a) above, inspect any reinforcing strap installed per Supplemental Type Certificate (STC) SA1178CE or SA1583CE for proper tension and condition in accordance with Aviadesign Engineering Order E.O. B-8001, Issue 3, dated May 30, 1985. Correct any discrepancy prior to further flight. For airplanes so equipped and inspected, the repetitive inspection interval of 1000 hours TIS in paragraph (a) above may be extended to 3000 hours TIS.

(c) If any crack is found in a main spar lower cap or fitting, prior to further flight repair or replace the defective part using the instructions and limitations specified in the Beech SIRM or other FAA approved instructions provided by Beech Aircraft Corporation.

(d) Within one week after completion of any inspection required by paragraph (a) or (b) of this AD, complete the reporting form included with this AD as Figure 1 and mail it to the address shown thereon (Reporting approved by the Office of Management and Budget under OMB No. 2120-0056).

(e) The initial and repetitive inspections specified in this AD are no longer required when the airplane is modified by Beech Wing Modification Kit No. 90-4077-1S or 100-4007-1S.

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

(g) 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, Wichita Aircraft Certification Office, FAA, 1801 Airport Road, Room 100, Wichita, Kansas 67209; Telephone (316) 946-4400.

NOTE 2: The request should be forwarded through an FAA Maintenance Inspector, who may add comments and send it to the Manager, Wichita Aircraft Certification Office.

All persons affected by this directive may obtain copies of the documents referred to herein upon request to the Beech Aircraft Corporation, Commercial Service, Department 52, Wichita, Kansas 67201-0085; or Western Aircraft Maintenance, 4444 Aeronca Street, Boise, Idaho 83705, or may examine these documents at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

This AD supersedes AD 87-23-09, Amendment 39-5765, and AD 70-25-04, Amendment 39-1332.

This amendment (39-6409, AD 89-25-10) becomes effective on January 4, 1990.

REPORTING FORM - 89-25-10
Airplane Model No. ___________________________________________________
Airplane Serial No.____________________________________________________
Date of inspection per this AD____________________________________________
Airframe total hours time-in-service________________________________________
Were any fatigue cracks found? No Yes __
If "Yes" was checked above, complete the following:
Location of crack_____________________________________________________
Was crack removable by reaming or grinding? No Yes __
Additional Comments __________________________________________________
Mailing Address:
FAA, Wichita ACO
Airframe Branch, Room 100
1801 Airport Road
Wichita, KS 67209

FIGURE 1 - 89-25-10

FOOTER:

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Retrieved: Apr 8, 2026

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