Sourced from the 1970 Report is the full history of EI-AOM 'St Phelim', including certification, maintenance history, engine and propellor details.

Registration: EI-AOM.

Aircraft Type and Serial Number: Viscount 803, Serial No. 178. Built by Vickers Armstrong (Aircraft) Ltd. for KLM (Royal Dutch Airlines).

Certified as approved for issue of Certificate of Airworthiness on 25 October 1957. The aircraft was registered as PH-VIG.

Purchased from KLM by Aer Lingus on 2 November 1966. Flown to Prestwick Airport on 3 November 1966 for overhaul and conversion per Aer Lingus Specification EAD/239/KLM Issue 8, sections 1, 2, 3, 4 and 5, and Routine Maintenance and Check 4 per approved Aer Lingus Maintenance Schedule Serial No. 1/C 32 and operating Plan, by Scottish Aviation Ltd.

Performance Test Flight, Aircraft Weighing, and Compass Swing carried out by Scottish Aviation Ltd.

The aircraft was certified on completion of work by Scottish Aviation Ltd. on 14 February 1967.

The aircraft went into service with Aer Lingus on 18 February 1967.

CERTIFICATE of Registration

The aircraft was cancelled from the Dutch Register on 25 November 1966. Registered on the Irish Register as EI-AOM and Certificate of Registration No. 396 issued on 29 November 1966.

CERTIFICATE of Air Worthiness

Irish Certificate of Airworthiness issued on 14 February 1967, and valid from 14 February 1967 to 13 February 1968. Renewed from 14 February 1968 to 13 February 1969.

MAINTENANCE RELEASE

The aircraft had a current Maintenance Release which had been issued and signed on 8 March 1968 at 06.30 hours, on completion of Inspection Number 5, with a validity period of 250 flying hours or 80 days elapsed time.

Flying Hours Landings

Total Aircraft Flying Hours and landings up to 3 November 1966 16,586 14,664

Total Aircraft Flying Hours and landings up to 23 March 1968 18,806.60 16,923

Total Aircraft Flying Hours and landings while in service with Aer Lingus 2,220.60 2,259

Total Aircraft Flying Hours and landings from Last C of A

Renewal to 23 March 1968 160.40 185

Total Aircraft Flying Hours and Landings from issue of Last 71.80 91

Maintenance Release to 23 March 1968

ENGINES INSTALLED IN AIRCRAFT AS of 23 MARCH 1968

Manufacturer: Rolls Royce Ltd.

Type: Dart 510A.

No. 1 Engine Serial No. 5195

Total Hours up to 23 March 1968,15,315.60 hours.

Total Hours since last overhaul up to 23 March 1968, 3,047.60 hours.

Date of last overhaul. 23 May 1966 (overhauled by Alfa Romeo).

Last Certificated Check carried out and date, Inspection No. 5 on 8 March 1968.

No.2 Engine Serial No. 5217

Total Hours up to 23 March 1968, 14,601.60 hours.

Total Hours since last overhaul up to 23 March 1968, 3,384.60 hours.

Date of last overhaul, 28 January 1966 (overhauled by Rolls Royce Ltd.).

Last Certificated Check carried out and date, Inspection No. 5 on 8 March 1968.

No. 3 Engine Serial No. 5839

Total Hours up to 23 March 1968, 14,635.60 hours.

Total Hours since last overhaul up to 23 March 1968, 355.45 hours.

Date of Last overhaul, 25 October 1967 (overhauled by Rolls Royce Ltd.).

Last Certificated Check carried out and date, Inspection No. 5 on 8 March 1968.

No. 4 Engine Serial No. 5374

Total Hours up to 23 March 1968, l5,965.80 hours.

Total Hours since last overhaul up to 23 March 1968, 1,676.30 hours.

Date of last overhaul, 13 February 1967 (overhauled by Rolls Royce Ltd.).

Last Certificated Check carried out and date, Inspection No. 5 on 8 March 1968.

Propellers INSTALLED IN AIRCRAFT AS of 23 MARCH 1968

Manufacturer: Dowty Rotol Ltd.

Type: R 130/4/20/4/12E.

No. 1 Propeller Serial No. 130/57/212

Total hours up to 23 March 1968, 14,056 hours.

Total hours since last overhaul up to 23 March 1968,2,999 hours.

Last Certificated Check carried out and date, Inspection No. 5 on 8 March 1968.

No. 2 Propeller Serial No. 130/57/218

Total hours up to 23 March 1968, 16,890 hours.

Total hours since last overhaul up to 23 March 1968, 3,263 hours.

Last Certificated Check carried out and date, Inspection No. 5 on 8 March 1968.

No. 3 Propeller Serial No. 130/57/377

Total hours up to 23 March 1968, 15,412 hours.

Total hours since last overhaul up to 23 March 1968, 1,009 hours.

Last Certificated Check carried out and date, Inspection No. 5 on 8 March 1968.

No. 4 Propeller Serial No. 130/57/287

Total hours up to 23 March 1968, 15,976 hours.

Total hours since last overhaul up to 23 March 1968, 1560 hours.

Last Certificated Check carried out and date, Inspection No. 5 on 8 March 1968.

The weight and centre of gravity were within limits.

The type of fuel used was Aviation kerosene (JP—I).