Who wrote the episode with the production code of 942A?
CREATE TABLE "table1_16432167_1" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" text
);
SELECT "written_by" FROM "table1_16432167_1" WHERE "production_code"='942A';