As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AIR WORTHINESS CHECK, MECHANIC FOUND A CRACK ABOUT 1.5 INCH LONG IN THE UPPER RT CORNER OF THE BATTERY COMPARTMENT ACCESS DOOR OPENING. THE CRACK WAS ORIGINALLY NOTICED IN THE DOUBLER AND UPON FURTHER INSPECTION FOUND A CRACK IN THE SKIN BENEATH THE DOUBLER. OPEN