High Bonding Resistance between the Static-Discharger Retainer and the Main Structure

TASK 23-61-00-810-802-A
High Bonding Resistance between the Static-Discharger Retainer and the Main Structure

1. Possible Causes

resistance measurement is not done correctly
bonding of the applicable surface is high
static-discharger retainer

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 20-28-00-869-002	Table of the Maximum Permitted Resistance-Values
AMM 23-61-00-200-001	Resistance Check Tip to Retainer. Bonding Check Retainer to Structure
AMM 23-61-42-000-001	Removal of the Static Discharger Retainer
AMM 23-61-42-400-001	Installation of the Static Discharger Retainer

3. Fault Confirmation
Subtask 23-61-00-710-051-A

A. Test
(1) Do a bonding check of the retainer to the structure, AMM 23-61-00-200-001.
(a) If the resistance is OK, no maintenance action is required.
(b) If the resistance is not OK, do Para. 4.A.(1).

NOTE: If the resistance measurement is not done correctly , high resistance can be shown.

4. Fault Isolation
Subtask 23-61-00-810-051-A

A. Procedure
(1) Do a bonding resistance check from the static-discharger retainer to the aircraft structure (use a local metallic point), AMM 20-28-00-869-002.

NOTE: A local metallic point on the aircraft can be used as an alternative to the ground point on the MLG. The maximum resistance value is the same for the two locations.

(a) If the resistance is correct, do a check of the bonding resistance between the aircraft main structure and the applicable surface, AMM 20-28-00-869-002.

NOTE: The applicable surface is the component that the static-discharger retainer is attached to. If the bonding of the applicable surface is high , the resistance between the static discharger and the aircraft will be high.

1 Repair all damage found.
2 Do the test in Para. 3.A.
(b) If the resistance is not OK, replace the static-discharger retainer , AMM 23-61-42-000-001 and AMM 23-61-42-400-001.

[Rev.8 from Aug 2018] 2026.04.04 04:25:47 UTC