AD 88-17-05
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Schempp-Hirth Flugzeugbau | Mini-Nimbus B | Airworthiness Directives; SCHEMPP-HIRTH GMBH Models Nimbus-2B, Janus B, and Mini-Nimbus B Gliders |
| aircraft | Schempp-Hirth Flugzeugbau | Nimbus-2B | Airworthiness Directives; SCHEMPP-HIRTH GMBH Models Nimbus-2B, Janus B, and Mini-Nimbus B Gliders |
Unsafe Condition
Failure of the elevator drive bracket, part number 30.055, due to cracks adjacent to the welds on both sides of the bracket, leading to loss of pitch control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 10 hours time in service after the effective date, and every 50 hours thereafter, visually inspect the elevator drive bracket using a 5-power magnifying glass for cracks near the welds as per the manufacturer's technical notes. Replace the bracket with part number 30.055 modification 'a' if cracks are found or by November 30, 1988.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 10 hours time in service after the effective date, and thereafter at intervals not to exceed 50 hours time in service from the last inspection. Replacement must be completed before further flight if cracks are found or prior to November 30, 1988.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Schempp-Hirth Flugzeugbau Models Nimbus-2B, Janus B, and Mini-Nimbus B gliders certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Elevator Drive Bracket
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_88-17-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 88-17-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; SCHEMPP-HIRTH GMBH Models Nimbus-2B, Janus B, and Mini-Nimbus B Gliders Subject: Elevator Drive Bracket Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/19/1988 Make: Schempp-Hirth Flugzeugbau Model: Mini-Nimbus B | Nimbus-2B Product Type: Aircraft Product Subtype: Glider Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 88-17-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5982 AD NUMBER: 88-17-05 SUBJECT HEADING: Airworthiness Directives; SCHEMPP-HIRTH GMBH Models Nimbus-2B, Janus B, and Mini-Nimbus B Gliders ACTION: SUMMARY: DATES: Effective August 19, 1988. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 88-17-05 SCHEMPP-HIRTH GMBH: Amendment 39-5982. Applies to Models Nimbus-2B, Janus B, and Mini-Nimbus B gliders certificated in any category. Compliance is required as indicated, unless already accomplished. To prevent failure of the elevator drive bracket and loss of pitch control accomplish the following: (a) Within the next 10 hours time in service (TIS) after the effective date of this AD unless already accomplished, and thereafter at intervals not to exceed 50 hours TIS from the last inspection, visually inspect the elevator drive bracket, P/N 30.055, using a 5-power or greater magnifying glass for cracks in the area adjacent to the welds on both sides of the bracket as shown in Sketch 1 or Sketch 3 of Schempp-Hirth Flugzeugbau GmbH Technical Note (TN) No. 286-24, dated August 14, 1987, for Nimbus-2B gliders, TN No. 295-19, dated August 14, 1987, for Janus B gliders, and TN No. 328-8, dated August 14, 1987, for Mini-Nimbus B gliders. (b) If cracks are found in the elevator drive bracket, replace the elevator drive bracket with elevator drive bracket, Part Number (P/N) 30.055, modification "a", dated August 24, 1987, before further flight. (c) Prior to November 30, 1988, unless already accomplished, replace elevator drive bracket P/N 30.055 with elevator drive bracket P/N 30.055, modification "a", dated August 24, 1987. NOTE: Installation of P/N 30.055, modification "a" is shown in Schempp-Hirth drawing HS5-30.055/1 Elevator-to-Stabilizer Assembly. (d) Upon request an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Brussels Aircraft Certification Office, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, 15 Rue de la Loi B-1040 Brussels, Belgium; telephone 513.38.30, Ext. 2710; or the Manager, New York Aircraft Certification Office, Aircraft Certification Division, Federal Aviation Administration, New England Region, 181 South Franklin Avenue, Room 202, Valley Stream, New York 11581; telephone (516) 791- 6680. (e) Upon submission of substantiating data by an owner or operator through an FAA Airworthiness Inspector, the Manager, Brussels Aircraft Certification Office, or the Manager, New York Aircraft Certification Office may adjust the compliance times specified in this AD. Schempp-Hirth GmbH TN No. 286-24 with 4 attached sketches, TN No. 295-19 with 4 attached sketches, and TN No. 328-8 with 4 attached sketches and 1 attached drawing, all dated August 14, 1987, identified and described in this document, are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Messrs. Schempp-Hirth, Flugzeugbau GmbH, Krebenstr 25, PostFach 14 43, D-7312 Kircheim/Teck, Federal Republic of Germany. These documents may also be examined at the Office of the Regional Counsel, Federal Aviation Administration, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803, Room 311, Rules Docket 88-ANE-27, between the hours of 8:00 a.m. and 4:30 p.m., Monday through Friday, except federal holidays. This amendment, 39-5982, becomes effective on August 19, 1988. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_88-17-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 88-17-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; SCHEMPP-HIRTH GMBH Models Nimbus-2B, Janus B, and Mini-Nimbus B Gliders Subject: Elevator Drive Bracket Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/19/1988 Make: Schempp-Hirth Flugzeugbau Model: Mini-Nimbus B | Nimbus-2B Product Type: Aircraft Product Subtype: Glider Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 88-17-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5982 AD NUMBER: 88-17-05 SUBJECT HEADING: Airworthiness Directives; SCHEMPP-HIRTH GMBH Models Nimbus-2B, Janus B, and Mini-Nimbus B Gliders ACTION: SUMMARY: DATES: Effective August 19, 1988. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 88-17-05 SCHEMPP-HIRTH GMBH: Amendment 39-5982. Applies to Models Nimbus-2B, Janus B, and Mini-Nimbus B gliders certificated in any category. Compliance is required as indicated, unless already accomplished. To prevent failure of the elevator drive bracket and loss of pitch control accomplish the following: (a) Within the next 10 hours time in service (TIS) after the effective date of this AD unless already accomplished, and thereafter at intervals not to exceed 50 hours TIS from the last inspection, visually inspect the elevator drive bracket, P/N 30.055, using a 5-power or greater magnifying glass for cracks in the area adjacent to the welds on both sides of the bracket as shown in Sketch 1 or Sketch 3 of Schempp-Hirth Flugzeugbau GmbH Technical Note (TN) No. 286-24, dated August 14, 1987, for Nimbus-2B gliders, TN No. 295-19, dated August 14, 1987, for Janus B gliders, and TN No. 328-8, dated August 14, 1987, for Mini-Nimbus B gliders. (b) If cracks are found in the elevator drive bracket, replace the elevator drive bracket with elevator drive bracket, Part Number (P/N) 30.055, modification "a", dated August 24, 1987, before further flight. (c) Prior to November 30, 1988, unless already accomplished, replace elevator drive bracket P/N 30.055 with elevator drive bracket P/N 30.055, modification "a", dated August 24, 1987. NOTE: Installation of P/N 30.055, modification "a" is shown in Schempp-Hirth drawing HS5-30.055/1 Elevator-to-Stabilizer Assembly. (d) Upon request an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Brussels Aircraft Certification Office, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, 15 Rue de la Loi B-1040 Brussels, Belgium; telephone 513.38.30, Ext. 2710; or the Manager, New York Aircraft Certification Office, Aircraft Certification Division, Federal Aviation Administration, New England Region, 181 South Franklin Avenue, Room 202, Valley Stream, New York 11581; telephone (516) 791- 6680. (e) Upon submission of substantiating data by an owner or operator through an FAA Airworthiness Inspector, the Manager, Brussels Aircraft Certification Office, or the Manager, New York Aircraft Certification Office may adjust the compliance times specified in this AD. Schempp-Hirth GmbH TN No. 286-24 with 4 attached sketches, TN No. 295-19 with 4 attached sketches, and TN No. 328-8 with 4 attached sketches and 1 attached drawing, all dated August 14, 1987, identified and described in this document, are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Messrs. Schempp-Hirth, Flugzeugbau GmbH, Krebenstr 25, PostFach 14 43, D-7312 Kircheim/Teck, Federal Republic of Germany. These documents may also be examined at the Office of the Regional Counsel, Federal Aviation Administration, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803, Room 311, Rules Docket 88-ANE-27, between the hours of 8:00 a.m. and 4:30 p.m., Monday through Friday, except federal holidays. This amendment, 39-5982, becomes effective on August 19, 1988. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
Related Airworthiness Directives
2006-22-10
final ruleAirworthiness Directives; Schempp-Hirth GmbH & Co. KG Models Mini-Nimbus B and Mini-Nimbus HS-7 Sailplanes
Unsafe Condition: Failure in the flap actuating circuit due to the lever at the torsional drive in the fuselage failing at the weld.
97-08-02 R1
final ruleAirworthiness Directives; Schempp-Hirth K.G. Models Nimbus-2B, Mini-Nimbus B, Discus a, and Discus b Sailplanes
Unsafe Condition: Corrosion in the elevator caused by water entering the elevator control rod, which could result in elevator failure and consequent loss of control of the sailplane.