# AD 58-01-04: Aileron Bellcrank Inspection

- Type: Airworthiness directive
- Status: Current
- Products: Helio H-391B
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 16 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B13D557F1BA44A2B86256A38005ED541.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/58-01-04

## The airworthiness directive

58-01-04 HELIO: Applies to Model H-391B Aircraft, Serial Numbers 003 to 063 Inclusive.

Several aileron-interceptor actuator bellcranks have been found to be cracked. Accordingly, the following inspection and replacement programs are required as indicated.

Compliance required within the next 100 hours.

Visually inspect the aileron-interceptor actuator bellcranks at the attachment of the control cables. Cracked bellcranks must be replaced.

(Helio Service Bulletin No. 16 covers this subject.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1A8](https://openairdocs.org/tcds/1A8): Helio Alaska Inc.; names 1 of 9 models: H-391B

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 16 (16 by airframe model, 0 by engine model)
- Makers: Helio 16

Models with the most aircraft:

- [Helio H-391B](https://openairdocs.org/model/helio-h-391b): 16 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/58-01-04/models.md
Every aircraft: https://openairdocs.org/ad/58-01-04/aircraft.md

Its text cites no advisory circulars or STCs.

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