Company officials said that all the tires they had been able to examine showed signs of underinflation, overloading, exterior damage from road debris, improper repair or other abuses.

The crash was eventually attributed to an improper repair in the rear bulkhead several years earlier, leading to catastrophic structural failure.

The cause was improper repair after a tailstrike incident in Hong Kong in 1980.

Some US owners that had their recalled vehicles repaired still reported accelerator pedal issues, leading to investigations and the finding of improper repairs.

Investigators have blamed an old, improper repair and a short circuit for the fire.

Of that, $150,000 is reimbursable through her pest-control company, which they are suing for misdiagnosing the problem and for improper repairs.

The lower figure represents the primary costs of faulty repairs; the higher figure includes secondary costs like wasted fuel and reduced car life that result from improper repairs.

The Federal Aviation Administration later said that a helicopter company had made improper repairs on the craft.

The cause of the crash was improper repairs to the aircraft 22 years earlier.

Foulois blamed Beck for improper repairs to the craft, and also questioned his ability to command.