* Boeing ( BA ) repairing wiring damage to about 25 737 MAX

jets, sources say

* Damage caused by Boeing ( BA ), source says

* Damage expected to reduce March 737 MAX deliveries

(Adds sourcing throughout, Boeing ( BA ) causing damage in paragraph

2)

By Dan Catchpole and David Shepardson

SEATTLE, March 13 (Reuters) - Boeing ( BA ) is repairing

as many as 25 undelivered 737 MAX jets with wiring flaws and

said first-quarter deliveries could face delays, two people

familiar with the matter told Reuters.

The planemaker had earlier this week said its teams were

fixing ​wires that have small scratches. The damage was caused

by Boeing ( BA ), according to one of the two people.

Both spoke on condition of anonymity, because they are not

authorized to speak publicly on the matter.

Some March deliveries will be delayed, a Boeing ( BA ) spokesperson

said on Tuesday. It is not clear if it will hamper deliveries in

April.

The company declined to comment further on Friday.