EMERGENCY AIRWORTHINESS DIRECTIVE 2010-24-52 – Bell Helicopter
This EAD supersedes EAD 2010-24-51, dated November 12, 2010 (EAD 2010-24-51), and is prompted by the need to expand the applicability of the existing EAD to include the serial-numbered main rotor hub inboard strap fittings (fittings) from an additional manufacturing lot.
Bell states they have determined that the fitting may not have been manufactured in accordance with the engineering design requirements and may fracture as a result of the non-conformance. Bell further states that their investigation is ongoing, and indicates that the ASB affects the fitting, part number 212-010-103-007, S/Ns as listed in Table 1 below:
| Table 1 Affected S/Ns |
| A-9956 through A-10005 |
| SH-52, SH-54, SH-55 |
| SH-57 through SH-65 |
| SH-67, SH-69, SH-70, SH-71, SH-73 |
| SH-103, SH-112, SH-113, SH-137, SH-139 |
2010-24-52_emergency.pdf
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