Category

Action

U

Undamaged

M(u)

Capable of being repaired on site by the operating unit

M(c)

Capable of being repaired on site but beyond the operating unit’s capacity

R(B)

Beyond repair on site but can be repaired at a repair facility

W

Beyond repair and written off

Category

Action

U

Undamaged

A

Capable of being repaired on site by the operating unit

Ac

Repair on Site. Capable of being repaired on site but beyond the operating unit’s capability.  Can be repaired on site by another unit or a contractor.

B

Repair in Works.  Capable of being repaired at a contractor’s works or by selected Maintenance Units.

C

Converted to Ground Instructional Airframe for training school use.

E

Beyond repair, written off.

E1

Beyond repair, written off after component recovery.

E2

Beyond repair, written off as scrap.

E3

Burnt out.

Em

Failed to return from an operational or training flight.

1

Undamaged

2

Aircraft can be repaired within second line servicing capability of the operating or nearest unit.

3

Beyond operating unit’s capability to repair.  Repair as follows:

3 (Rep)C

Repairable on site by a contractor’s working party.

3 (Rep)S

Repairable on site by a suitably qualified Service unit.

3 (Rep)C Fly

After any temporary repair, can be flown with flight limitations, to the contractor’s works.

3 (Rep)C Fly Deferred

Can continue to be flown, with flight limitations, by the operating unit until a repair date is agreed with the contractor.

3 (Rep) S Fly Deferred

Can continue to be flown, with flight limitations, by the operating unit until a repair date is agreed with a suitable Service unit.

4 (Rep)

Repair in works.  Transfer to a contractor’s works by road

4 (Fly)

Repair in works.  Fly to a contractor’s works , with flight limitations, after any necessary but temporary repairs.

4 (Rogue)

After air tests and technical investigations, the operating unit is satisfied that the aircraft has unsatisfactory flying characteristics.

5

Beyond repair or surplus, written off.

5(c)

Beyond repair or surplus, written off after component recovery.

5(s)

Beyond repair or surplus, written off as scrap.

5(gi)

Converted to Ground Instructional Airframe for training school use.

5(m)

Missing from an operational or training flight.