Airworthiness Directive · Amendment 39-19588 · Cabin equipment/furnishings
Airbus Helicopters Deutschland GmbH Helicopters
Superseded. A later AD replaced this one: AD 2021-21-01. Comply with the one in force.
This AD applies to Airbus Helicopters Deutschland GmbH Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, and EC135T3 helicopters, certificated in any category, with an external mounted hoist (hoist) part number (P/N) and hook assembly (hook) P/N shown in Table 1 to paragraph (a) of this AD:
| Hoist P/Ns | Hook P/Ns |
|---|---|
| 44301-10-2 | 44301-420 |
| 44301-10-5 | 44301-420 |
| 44301-10-6 | 44301-420 |
| 44301-10-10 | 44301-423 |
| 44301-10-11 | 44301-423 |
| 44301-10-12 | 44301-423 |
| 44301-10-13 | 44301-423 |
We are adopting a new airworthiness directive (AD) for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, and EC135T3 helicopters. This AD requires replacing the retaining ring and inspecting the hoist cable hook assembly (hook). This AD was prompted by a report that a hook detached from the hoist cable. The actions of this AD are intended to address an unsafe condition on these products.
You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time.
Within 90 hours time-in-service (TIS) and thereafter at intervals not to exceed 180 hours TIS:
(1) Inspect the hook and determine whether the elastomeric energy absorber has taken a permanent compression set by following the Accomplishment Instructions, paragraphs 2.A and 2.B, of Goodrich Service Bulletin No. 44301-10-17, Revision 4, dated July 26, 2017 (SB 44301-10-17). If the elastomeric energy absorber has taken a permanent compression set, replace the elastomeric energy absorber before the next hoist operation.
(2) Replace the retaining ring by following the Accomplishment Instructions, paragraphs 2.D through 2.K, of SB 44301-10-17.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
