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BGA Compendium – 07/07

GROB G-109 B · Maintenance Manual

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Overview

This document provides maintenance information for the Grob G-109 B aircraft, including airworthiness directives, in-service reports, and inspection details. It outlines various issues and recommendations for maintaining the aircraft's performance and safety.

  • Includes airworthiness directives for the G-109 B.
  • Details inspection requirements for flying controls.
  • Advisory reports highlight common issues and maintenance needs.
  • Corrosion and structural integrity are key concerns.
  • Recommendations for replacing certain components to enhance safety.
  • Contact information for product support and technical assistance is provided.

Document

Source

Originally published by amazonaws.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.

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Document details

Type
·
Maintenance Manual
Year
·
2007
File size
·
117 KB
Publisher
·
amazonaws.com
Language
·
en
About this document
What is the BGA Compendium – 07/07?

The BGA Compendium – 07/07 is a maintenance manual for the GROB G-109 B, dated 2007.

Where does the BGA Compendium – 07/07 come from?

This copy of the BGA Compendium – 07/07 was originally published by amazonaws.com and is hosted on Sprinkle as a free, searchable reference copy.

What year was the BGA Compendium – 07/07 published?

The BGA Compendium – 07/07 — the GROB G-109 B maintenance manual on file — is dated 2007.

Documentation completeness
3/7

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In this document

Airworthiness Directives

Lists directives related to fixed wheel variants and harness attachments, including reinforcement and securement details.

In Service Reports

Advisory reports on various components such as aileron connectors, speed brake paddles, and fuselage inspections for cracks.

G-109B Specific Issues

Highlights specific maintenance issues for the G-109B, including performance changes and control rod inspections.

Corrosion and Structural Integrity

Emphasizes the need for regular inspections to identify corrosion in wing root attachments and other critical areas.

Component Recommendations

Suggests replacing nylon pulleys with aluminum in the wheel brake system and checking the canopy jettison control.

Contact Information

Provides contact details for product support and technical assistance related to the Grob G-109 B.

Safety notes

  • Inspect frequently for cracks in the aluminium fuselage main frames.
  • Check and wire lock oil sump plug and oil cooler unions.
  • Replace cracked hot air shutter valves and loose butterfly screws.
  • Inspect elevator control rods for integrity.
  • Ensure air brake control rod is functioning properly.

Full document text

Grob (Germany) BGA Compendium – 07/07 1 CONTACT Product Support: Lindner TLB (took over from Grob) UK Agent: Soaring Oxford Tel: 01636 525318 Technical: Airborne Composites Contact: Tim Dews, Tel : 01985 840981 Airworthiness Directives LBA EASA Grob ADs and TN/SBs spares and repair schemes from Lindner LTB Single Seat Astir Series Status Subject Detail Reference Information TNS M Fixed wheel variants Reinforcement of wheel mount BGA Mod Astir/1/83 04/83 Top harness attachments Secure around transverse tube and through buckle 3 times RS 306 & 320 12/87 & 02/93 Astir In Service Reports (Advisory) Status Subject Detail Reference Information TNS Aileron connectors Disconnect & rods jam 10/87 & 10/79 Speed brake paddle Lever arm cracked 03/82 & 12/83 Aluminium fuselage main frames Inspect frequently for cracks 04/84 Lower rudder hinge (not CS) cracks in GRP 06/85 Elevator control rods Corroded in rear fuselage 08/87 Elevator vertical drive Loose rivets 08/87 Wing to fuselage attachments Balls missing (should be six per socket) 10/87 Retractable u/c hinge bars Circlips come off - replace with split pins 12/98 & 06/88 Undercarriage lever retaining bolt Loose in GRP 06/92 Frame at base of the fin Fractured by ground loops - causes tail end flutter 04/95 & 06/95 Tow hook back release If wire launched with adverse yaw may have difficulty Releasing 02/00 Tailplane mounting Location ball thread cracked (AD inspection) 12/05 Tailplane location pins Flanges cracked 12/05 Tailplane mountings Continued problems with Spherical ball mounting. New mounting immanent. 1/2006 Astir CS Astir CS Data Sheet Astir CS77 & Jeans Data Sheet Grob (Germany) BGA Compendium – 07/07 2 Grob 102 Club Astir II, III & IIIb and Std Astir II & III Speed Astir II & IIB Twin Astir, Twin Astir Trainer, G-103 Twin II, G-103A Twin II Acro, G-103C Twin III & Twin III Acro Grob G-103 Twin II & Grob 103A Twin II Acro Data Sheet Grob G-103 Twin III & Twin III Acro Data Sheet Twin Astir In Service Reports (Advisory) Status Subject Detail Reference Information TNS Wheel brake back plate Torque stud fractured 07/78 Rudder cables Damaged at “S” bends 06/84, 06/05 Airbrake lever failure (front) Failure 10/98 Side hinged rudders Delamination of fin skin at hinges 08/86 Aileron mass balance Cracks - inspect 02/86 & 04/89 Tow hook Front mounting bracket cracked 02/91 & 10/89 Manual & placard amendments G-103C only TN 315-40 12/89 Rudder drive Failure at fork end at rudder 06/90 Wing to fuselage joiners Inspect after ground loops 02/91 Rudder cable pulleys Cracked 02/93 & 12/94 Front rudder pedals (G 103C) Slide rod fractured 06/96 Canopy jettison handles Disengaged from jettison systems - check 08/97 Rear release cable Jams between panel & coaming. Hook held open 10/97 Airbrake over-centre adjustment Must be correct to avoid un-demanded opening 12/97 Front rudder pedals Mounting plate partial disbonding - inspect 12/98 Control cables Cable release failed at swage at release hook arm 04/00 Grob G-103 Twin 3 SLMG Grob (Germany) BGA Compendium – 07/07 3 Grob G-109 & G-109B Status Subject Detail Reference Information TNS M G109B - CAA flight manual change Quoted performance reduced CAA Ref 1236/41491 04/99 R Flying controls Inspection of air brake control rod BGA 022/10/2001 iss1 10/01 R Flying controls Inspection of elevator control rod BGA 036/06/2003 iss1 06/03 G-109 In Service Reports (Advisory) Status Subject Detail Reference Information TNS Corrosion of bolts In wing root attachments 06/91 Hot air shutter valves Cracked, failed & and butterfly screws loose 10/86, 12/92 & 10/91 Rudder Bell crank cracked & failed 08/92 Pulleys in wheel brake system Cracked replace nylon with aluminium 04/94 Tail wheel springs Damage rudder push-rod 06/97 Pitch change bolt failure Various causes detailed in TNS 02/98 Canopy jettison control Jammed by screws that attach roof trim 06/98 I Engine oil sump (G109 B) Oil sump plug & oil cooler unions loose, check & wire lock 06/03